77831316342286 has 32 divisors (see below), whose sum is σ = 127803768035328. Its totient is φ = 35329069347840.

The previous prime is 77831316342271. The next prime is 77831316342389. The reversal of 77831316342286 is 68224361313877.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10492126 + ... + 16301758.

It is an arithmetic number, because the mean of its divisors is an integer number (3993867751104).

Almost surely, 2^{77831316342286} is an apocalyptic number.

77831316342286 is a deficient number, since it is larger than the sum of its proper divisors (49972451693042).

77831316342286 is a wasteful number, since it uses less digits than its factorization.

77831316342286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5818156.

The product of its digits is 48771072, while the sum is 61.

The spelling of 77831316342286 in words is "seventy-seven trillion, eight hundred thirty-one billion, three hundred sixteen million, three hundred forty-two thousand, two hundred eighty-six".