77883013831 has 8 divisors (see below), whose sum is σ = 90688577184. Its totient is φ = 65497305120.

The previous prime is 77883013799. The next prime is 77883013841. The reversal of 77883013831 is 13831038877.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 77883013831 - 2⁵ = 77883013799 is a prime.

It is a super-2 number, since 2×77883013831² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77883013841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104963260 + ... + 104964001.

It is an arithmetic number, because the mean of its divisors is an integer number (11336072148).

Almost surely, 2^77883013831 is an apocalyptic number.

77883013831 is a deficient number, since it is larger than the sum of its proper divisors (12805563353).

77883013831 is a wasteful number, since it uses less digits than its factorization.

77883013831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209927321.

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 77883013831 in words is "seventy-seven billion, eight hundred eighty-three million, thirteen thousand, eight hundred thirty-one".