715757420121 has 16 divisors (see below), whose sum is σ = 988340203200. Its totient is φ = 460209411648.

The previous prime is 715757420107. The next prime is 715757420149. The reversal of 715757420121 is 121024757517.

It is not a de Polignac number, because 715757420121 - 2²¹ = 715755322969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (715757425121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4456426 + ... + 4614243.

It is an arithmetic number, because the mean of its divisors is an integer number (61771262700).

Almost surely, 2^715757420121 is an apocalyptic number.

It is an amenable number.

715757420121 is a deficient number, since it is larger than the sum of its proper divisors (272582783079).

715757420121 is a wasteful number, since it uses less digits than its factorization.

715757420121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9071608.

The product of its (nonzero) digits is 137200, while the sum is 42.

The spelling of 715757420121 in words is "seven hundred fifteen billion, seven hundred fifty-seven million, four hundred twenty thousand, one hundred twenty-one".