26297498016 has 384 divisors, whose sum is σ = 83398533120. Its totient is φ = 8031744000.

The previous prime is 26297497991. The next prime is 26297498023. The reversal of 26297498016 is 61089479262.

26297498016 is a `hidden beast` number, since 2 + 62 + 97 + 498 + 0 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 157469965 + ... + 157470131.

It is an arithmetic number, because the mean of its divisors is an integer number (217183680).

Almost surely, 2^26297498016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26297498016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41699266560).

26297498016 is an abundant number, since it is smaller than the sum of its proper divisors (57101035104).

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

26297498016 is a wasteful number, since it uses less digits than its factorization.

26297498016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 26297498016 in words is "twenty-six billion, two hundred ninety-seven million, four hundred ninety-eight thousand, sixteen".