243374477015296 has 243 divisors, whose sum is σ = 538735367724337. Its totient is φ = 109647549214720.

The previous prime is 243374477015093. The next prime is 243374477015303. The reversal of 243374477015296 is 692510774473342.

The square root of 243374477015296 is 15600464.

It is a perfect power (a square), and thus also a powerful number.

243374477015296 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 142959327033600 + 100415149981696 = 11956560^2 + 10020736^2 .

It is a super-2 number, since 2×243374477015296² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 376158387645 + ... + 376158388291.

Almost surely, 2^{243374477015296} is an apocalyptic number.

243374477015296 is the 15600464-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243374477015296

243374477015296 is an abundant number, since it is smaller than the sum of its proper divisors (295360890709041).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243374477015296 is an frugal number, since it uses more digits than its factorization.

243374477015296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 213373440, while the sum is 64.

243374477015296 divided by its sum of digits (64) gives a square (3802726203364 = 1950058²).

The spelling of 243374477015296 in words is "two hundred forty-three trillion, three hundred seventy-four billion, four hundred seventy-seven million, fifteen thousand, two hundred ninety-six".