70877751081 has 16 divisors (see below), whose sum is σ = 95926022400. Its totient is φ = 46542384000.

The previous prime is 70877751071. The next prime is 70877751083. The reversal of 70877751081 is 18015777807.

It is not a de Polignac number, because 70877751081 - 2⁶ = 70877751017 is a prime.

It is a super-2 number, since 2×70877751081² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70877751083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51006 + ... + 379943.

It is an arithmetic number, because the mean of its divisors is an integer number (5995376400).

Almost surely, 2^70877751081 is an apocalyptic number.

It is an amenable number.

70877751081 is a deficient number, since it is larger than the sum of its proper divisors (25048271319).

70877751081 is a wasteful number, since it uses less digits than its factorization.

70877751081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431776.

The product of its (nonzero) digits is 768320, while the sum is 51.

The spelling of 70877751081 in words is "seventy billion, eight hundred seventy-seven million, seven hundred fifty-one thousand, eighty-one".