26073815616 has 42 divisors (see below), whose sum is σ = 74735886342. Its totient is φ = 8691271680.

The previous prime is 26073815597. The next prime is 26073815627. The reversal of 26073815616 is 61651837062.

26073815616 is a `hidden beast` number, since 2 + 6 + 0 + 7 + 3 + 81 + 561 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21229655616 + 4844160000 = 145704^2 + 69600^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22632945 + ... + 22634096.

Almost surely, 2^26073815616 is an apocalyptic number.

It is an amenable number.

26073815616 is an abundant number, since it is smaller than the sum of its proper divisors (48662070726).

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

26073815616 is a wasteful number, since it uses less digits than its factorization.

26073815616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45267059 (or 45267046 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 26073815616 in words is "twenty-six billion, seventy-three million, eight hundred fifteen thousand, six hundred sixteen".