247230485472 has 48 divisors (see below), whose sum is σ = 654090135552. Its totient is φ = 81761258880.

The previous prime is 247230485459. The next prime is 247230485477. The reversal of 247230485472 is 274584032742.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×247230485472² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247230485477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10126854 + ... + 10151237.

It is an arithmetic number, because the mean of its divisors is an integer number (13626877824).

Almost surely, 2^247230485472 is an apocalyptic number.

It is an amenable number.

247230485472 is an abundant number, since it is smaller than the sum of its proper divisors (406859650080).

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

247230485472 is a wasteful number, since it uses less digits than its factorization.

247230485472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20278231 (or 20278223 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 48.

The spelling of 247230485472 in words is "two hundred forty-seven billion, two hundred thirty million, four hundred eighty-five thousand, four hundred seventy-two".