26189012916 has 72 divisors (see below), whose sum is σ = 73897727904. Its totient is φ = 7751499840.

The previous prime is 26189012911. The next prime is 26189012923. The reversal of 26189012916 is 61921098162.

26189012916 is a `hidden beast` number, since 2 + 618 + 9 + 0 + 1 + 29 + 1 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26189012911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 751971 + ... + 786026.

It is an arithmetic number, because the mean of its divisors is an integer number (1026357332).

Almost surely, 2^26189012916 is an apocalyptic number.

It is an amenable number.

26189012916 is an abundant number, since it is smaller than the sum of its proper divisors (47708714988).

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

26189012916 is a wasteful number, since it uses less digits than its factorization.

26189012916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538061 (or 1538056 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 26189012916 in words is "twenty-six billion, one hundred eighty-nine million, twelve thousand, nine hundred sixteen".