77706493694102 has 64 divisors (see below), whose sum is σ = 150470185420800. Its totient is φ = 29273804631936.

The previous prime is 77706493694101. The next prime is 77706493694119. The reversal of 77706493694102 is 20149639460777.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77706493694101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122443352 + ... + 123076347.

It is an arithmetic number, because the mean of its divisors is an integer number (2351096647200).

Almost surely, 2^{77706493694102} is an apocalyptic number.

77706493694102 is a deficient number, since it is larger than the sum of its proper divisors (72763691726698).

77706493694102 is a wasteful number, since it uses less digits than its factorization.

77706493694102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245519805.

The product of its (nonzero) digits is 96018048, while the sum is 65.

The spelling of 77706493694102 in words is "seventy-seven trillion, seven hundred six billion, four hundred ninety-three million, six hundred ninety-four thousand, one hundred two".