77738506084011 has 4 divisors (see below), whose sum is σ = 103651341445352. Its totient is φ = 51825670722672.

The previous prime is 77738506083961. The next prime is 77738506084027. The reversal of 77738506084011 is 11048060583777.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 77738506084011 - 2²⁵ = 77738472529579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77738506084111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12956417680666 + ... + 12956417680671.

It is an arithmetic number, because the mean of its divisors is an integer number (25912835361338).

Almost surely, 2^{77738506084011} is an apocalyptic number.

77738506084011 is a deficient number, since it is larger than the sum of its proper divisors (25912835361341).

77738506084011 is a wasteful number, since it uses less digits than its factorization.

77738506084011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25912835361340.

The product of its (nonzero) digits is 7902720, while the sum is 57.

The spelling of 77738506084011 in words is "seventy-seven trillion, seven hundred thirty-eight billion, five hundred six million, eighty-four thousand, eleven".