77732117680546 has 16 divisors (see below), whose sum is σ = 133255444723776. Its totient is φ = 33313668259536.

The previous prime is 77732117680517. The next prime is 77732117680561. The reversal of 77732117680546 is 64508671123777.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2918196 + ... + 12805471.

It is an arithmetic number, because the mean of its divisors is an integer number (8328465295236).

Almost surely, 2^{77732117680546} is an apocalyptic number.

77732117680546 is a deficient number, since it is larger than the sum of its proper divisors (55523327043230).

77732117680546 is a wasteful number, since it uses less digits than its factorization.

77732117680546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16076793.

The product of its (nonzero) digits is 82978560, while the sum is 64.

The spelling of 77732117680546 in words is "seventy-seven trillion, seven hundred thirty-two billion, one hundred seventeen million, six hundred eighty thousand, five hundred forty-six".