77116751331 has 8 divisors (see below), whose sum is σ = 102969017424. Its totient is φ = 51337826400.

The previous prime is 77116751329. The next prime is 77116751333. The reversal of 77116751331 is 13315761177.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (77116751329) and next prime (77116751333).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77116751331 - 2¹ = 77116751329 is a prime.

It is a super-2 number, since 2×77116751331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77116751333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18332836 + ... + 18337041.

It is an arithmetic number, because the mean of its divisors is an integer number (12871127178).

Almost surely, 2^77116751331 is an apocalyptic number.

77116751331 is a deficient number, since it is larger than the sum of its proper divisors (25852266093).

77116751331 is a wasteful number, since it uses less digits than its factorization.

77116751331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36670581.

The product of its digits is 92610, while the sum is 42.

The spelling of 77116751331 in words is "seventy-seven billion, one hundred sixteen million, seven hundred fifty-one thousand, three hundred thirty-one".