77745327803316 has 24 divisors (see below), whose sum is σ = 201561960971840. Its totient is φ = 25915109267736.

The previous prime is 77745327803309. The next prime is 77745327803327. The reversal of 77745327803316 is 61330872354777.

77745327803316 is a `hidden beast` number, since 7 + 7 + 7 + 4 + 532 + 7 + 80 + 3 + 3 + 16 = 666.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 359932073056 + ... + 359932073271.

Almost surely, 2^{77745327803316} is an apocalyptic number.

It is an amenable number.

77745327803316 is an abundant number, since it is smaller than the sum of its proper divisors (123816633168524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77745327803316 is a wasteful number, since it uses less digits than its factorization.

77745327803316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719864146340 (or 719864146332 counting only the distinct ones).

The product of its (nonzero) digits is 124467840, while the sum is 63.

The spelling of 77745327803316 in words is "seventy-seven trillion, seven hundred forty-five billion, three hundred twenty-seven million, eight hundred three thousand, three hundred sixteen".