77051747213 has 12 divisors (see below), whose sum is σ = 89661023712. Its totient is φ = 66022692120.

The previous prime is 77051747207. The next prime is 77051747221. The reversal of 77051747213 is 31274715077.

It is not a de Polignac number, because 77051747213 - 2¹² = 77051743117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77051747233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106073 + ... + 406638.

It is an arithmetic number, because the mean of its divisors is an integer number (7471751976).

Almost surely, 2^77051747213 is an apocalyptic number.

It is an amenable number.

77051747213 is a deficient number, since it is larger than the sum of its proper divisors (12609276499).

77051747213 is a wasteful number, since it uses less digits than its factorization.

77051747213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515792 (or 515785 counting only the distinct ones).

The product of its (nonzero) digits is 288120, while the sum is 44.

The spelling of 77051747213 in words is "seventy-seven billion, fifty-one million, seven hundred forty-seven thousand, two hundred thirteen".