77251313340131 has 32 divisors (see below), whose sum is σ = 96840270144000. Its totient is φ = 60125175597312.

The previous prime is 77251313340067. The next prime is 77251313340181. The reversal of 77251313340131 is 13104331315277.

It is not a de Polignac number, because 77251313340131 - 2⁶ = 77251313340067 is a prime.

It is a super-2 number, since 2×77251313340131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77251313340181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72569621 + ... + 73626438.

It is an arithmetic number, because the mean of its divisors is an integer number (3026258442000).

Almost surely, 2^{77251313340131} is an apocalyptic number.

77251313340131 is a deficient number, since it is larger than the sum of its proper divisors (19588956803869).

77251313340131 is a wasteful number, since it uses less digits than its factorization.

77251313340131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146196251.

The product of its (nonzero) digits is 158760, while the sum is 41.

The spelling of 77251313340131 in words is "seventy-seven trillion, two hundred fifty-one billion, three hundred thirteen million, three hundred forty thousand, one hundred thirty-one".