26501252916 has 12 divisors (see below), whose sum is σ = 61836256832. Its totient is φ = 8833750968.

The previous prime is 26501252891. The next prime is 26501252917. The reversal of 26501252916 is 61925210562.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×26501252916² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26501252917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1104218860 + ... + 1104218883.

Almost surely, 2^26501252916 is an apocalyptic number.

It is an amenable number.

26501252916 is an abundant number, since it is smaller than the sum of its proper divisors (35335003916).

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

26501252916 is a wasteful number, since it uses less digits than its factorization.

26501252916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208437750 (or 2208437748 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 26501252916 in words is "twenty-six billion, five hundred one million, two hundred fifty-two thousand, nine hundred sixteen".