77616922063 has 4 divisors (see below), whose sum is σ = 77693543928. Its totient is φ = 77540300200.

The previous prime is 77616922027. The next prime is 77616922129. The reversal of 77616922063 is 36022961677.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77616922063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77616921998 and 77616922016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77616922963) 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, 38309413 + ... + 38311438.

It is an arithmetic number, because the mean of its divisors is an integer number (19423385982).

Almost surely, 2^77616922063 is an apocalyptic number.

77616922063 is a deficient number, since it is larger than the sum of its proper divisors (76621865).

77616922063 is a wasteful number, since it uses less digits than its factorization.

77616922063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76621864.

The product of its (nonzero) digits is 1143072, while the sum is 49.

The spelling of 77616922063 in words is "seventy-seven billion, six hundred sixteen million, nine hundred twenty-two thousand, sixty-three".