401172007715 has 192 divisors, whose sum is σ = 574325579520. Its totient is φ = 268021923840.

The previous prime is 401172007679. The next prime is 401172007721. The reversal of 401172007715 is 517700271104.

It is not a de Polignac number, because 401172007715 - 2⁸ = 401172007459 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3680477081 + ... + 3680477189.

It is an arithmetic number, because the mean of its divisors is an integer number (2991279060).

Almost surely, 2^401172007715 is an apocalyptic number.

401172007715 is a deficient number, since it is larger than the sum of its proper divisors (173153571805).

401172007715 is a wasteful number, since it uses less digits than its factorization.

401172007715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 35.

Adding to 401172007715 its reverse (517700271104), we get a palindrome (918872278819).

The spelling of 401172007715 in words is "four hundred one billion, one hundred seventy-two million, seven thousand, seven hundred fifteen".