17261320475 has 24 divisors (see below), whose sum is σ = 25122895008. Its totient is φ = 11516428800.

The previous prime is 17261320471. The next prime is 17261320477. The reversal of 17261320475 is 57402316271.

It is not a de Polignac number, because 17261320475 - 2² = 17261320471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17261320471) 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, 1326446 + ... + 1339395.

It is an arithmetic number, because the mean of its divisors is an integer number (1046787292).

Almost surely, 2^17261320475 is an apocalyptic number.

17261320475 is a deficient number, since it is larger than the sum of its proper divisors (7861574533).

17261320475 is a wasteful number, since it uses less digits than its factorization.

17261320475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2665895 (or 2665890 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 17261320475 in words is "seventeen billion, two hundred sixty-one million, three hundred twenty thousand, four hundred seventy-five".