77786342343670 has 32 divisors (see below), whose sum is σ = 140225118416640. Its totient is φ = 31067956554240.

The previous prime is 77786342343659. The next prime is 77786342343797. The reversal of 77786342343670 is 7634324368777.

It is a junction number, because it is equal to n+sod(n) for n = 77786342343596 and 77786342343605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29754715 + ... + 32263225.

It is an arithmetic number, because the mean of its divisors is an integer number (4382034950520).

Almost surely, 2^{77786342343670} is an apocalyptic number.

77786342343670 is a deficient number, since it is larger than the sum of its proper divisors (62438776072970).

77786342343670 is a wasteful number, since it uses less digits than its factorization.

77786342343670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513160.

The product of its (nonzero) digits is 597445632, while the sum is 67.

The spelling of 77786342343670 in words is "seventy-seven trillion, seven hundred eighty-six billion, three hundred forty-two million, three hundred forty-three thousand, six hundred seventy".