77692315394 has 8 divisors (see below), whose sum is σ = 116591379600. Its totient is φ = 38828522196.

The previous prime is 77692315381. The next prime is 77692315397. The reversal of 77692315394 is 49351329677.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (77692315397) 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, 8812244 + ... + 8821055.

It is an arithmetic number, because the mean of its divisors is an integer number (14573922450).

Almost surely, 2^77692315394 is an apocalyptic number.

77692315394 is a deficient number, since it is larger than the sum of its proper divisors (38899064206).

77692315394 is a wasteful number, since it uses less digits than its factorization.

77692315394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17635504.

The product of its digits is 8573040, while the sum is 56.

The spelling of 77692315394 in words is "seventy-seven billion, six hundred ninety-two million, three hundred fifteen thousand, three hundred ninety-four".