26537713216 has 63 divisors (see below), whose sum is σ = 61279517649. Its totient is φ = 11369395968.

The previous prime is 26537713183. The next prime is 26537713247. The reversal of 26537713216 is 61231773562.

The square root of 26537713216 is 162904.

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

It can be written as a sum of positive squares in only one way, i.e., 23014103616 + 3523609600 = 151704^2 + 59360^2 .

It is a super-2 number, since 2×26537713216² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9121170 + ... + 9124078.

Almost surely, 2^26537713216 is an apocalyptic number.

26537713216 is the 162904-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26537713216

26537713216 is an abundant number, since it is smaller than the sum of its proper divisors (34741804433).

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

26537713216 is an frugal number, since it uses more digits than its factorization.

26537713216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5844 (or 2918 counting only the distinct ones).

The product of its digits is 317520, while the sum is 43.

The spelling of 26537713216 in words is "twenty-six billion, five hundred thirty-seven million, seven hundred thirteen thousand, two hundred sixteen".