77786131677674 has 16 divisors (see below), whose sum is σ = 135607784040000. Its totient is φ = 32771881142304.

The previous prime is 77786131677671. The next prime is 77786131677701. The reversal of 77786131677674 is 47677613168777.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 77786131677595 and 77786131677604.

It is not an unprimeable number, because it can be changed into a prime (77786131677671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47086035299 + ... + 47086036950.

It is an arithmetic number, because the mean of its divisors is an integer number (8475486502500).

Almost surely, 2^{77786131677674} is an apocalyptic number.

77786131677674 is a deficient number, since it is larger than the sum of its proper divisors (57821652362326).

77786131677674 is a wasteful number, since it uses less digits than its factorization.

77786131677674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94172072317.

The product of its digits is 2439569664, while the sum is 77.

The spelling of 77786131677674 in words is "seventy-seven trillion, seven hundred eighty-six billion, one hundred thirty-one million, six hundred seventy-seven thousand, six hundred seventy-four".