77307682520613 has 4 divisors (see below), whose sum is σ = 103076910027488. Its totient is φ = 51538455013740.

The previous prime is 77307682520587. The next prime is 77307682520639. The reversal of 77307682520613 is 31602528670377.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (77307682520587) and next prime (77307682520639).

It is not a de Polignac number, because 77307682520613 - 2¹³ = 77307682512421 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 (77307682520813) 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, 12884613753433 + ... + 12884613753438.

It is an arithmetic number, because the mean of its divisors is an integer number (25769227506872).

Almost surely, 2^{77307682520613} is an apocalyptic number.

It is an amenable number.

77307682520613 is a deficient number, since it is larger than the sum of its proper divisors (25769227506875).

77307682520613 is a wasteful number, since it uses less digits than its factorization.

77307682520613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25769227506874.

The product of its (nonzero) digits is 17781120, while the sum is 57.

The spelling of 77307682520613 in words is "seventy-seven trillion, three hundred seven billion, six hundred eighty-two million, five hundred twenty thousand, six hundred thirteen".