77738506084031 has 8 divisors (see below), whose sum is σ = 84865218444720. Its totient is φ = 70775626191552.

The previous prime is 77738506084027. The next prime is 77738506084039. The reversal of 77738506084031 is 13048060583777.

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 77738506084031 - 2² = 77738506084027 is a prime.

It is a super-2 number, since 2×77738506084031² (a number of 29 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 (77738506084039) 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, 40958116061 + ... + 40958117958.

It is an arithmetic number, because the mean of its divisors is an integer number (10608152305590).

Almost surely, 2^{77738506084031} is an apocalyptic number.

77738506084031 is a deficient number, since it is larger than the sum of its proper divisors (7126712360689).

77738506084031 is a wasteful number, since it uses less digits than its factorization.

77738506084031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81916234105.

The product of its (nonzero) digits is 23708160, while the sum is 59.

The spelling of 77738506084031 in words is "seventy-seven trillion, seven hundred thirty-eight billion, five hundred six million, eighty-four thousand, thirty-one".