26510742172 has 12 divisors (see below), whose sum is σ = 48410920656. Its totient is φ = 12679050560.

The previous prime is 26510742169. The next prime is 26510742221. The reversal of 26510742172 is 27124701562.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144080029 + ... + 144080212.

It is an arithmetic number, because the mean of its divisors is an integer number (4034243388).

Almost surely, 2^26510742172 is an apocalyptic number.

It is an amenable number.

26510742172 is a deficient number, since it is larger than the sum of its proper divisors (21900178484).

26510742172 is a wasteful number, since it uses less digits than its factorization.

26510742172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288160268 (or 288160266 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 26510742172 in words is "twenty-six billion, five hundred ten million, seven hundred forty-two thousand, one hundred seventy-two".