77677315763 has 4 divisors (see below), whose sum is σ = 81765595560. Its totient is φ = 73589035968.

The previous prime is 77677315721. The next prime is 77677315769. The reversal of 77677315763 is 36751377677.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36751377677 = 7 ⋅5250196811.

It is a cyclic number.

It is not a de Polignac number, because 77677315763 - 2⁶ = 77677315699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77677315769) 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, 2044139870 + ... + 2044139907.

It is an arithmetic number, because the mean of its divisors is an integer number (20441398890).

Almost surely, 2^77677315763 is an apocalyptic number.

77677315763 is a deficient number, since it is larger than the sum of its proper divisors (4088279797).

77677315763 is a wasteful number, since it uses less digits than its factorization.

77677315763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4088279796.

The product of its digits is 27227340, while the sum is 59.

The spelling of 77677315763 in words is "seventy-seven billion, six hundred seventy-seven million, three hundred fifteen thousand, seven hundred sixty-three".