77313544033257 has 48 divisors (see below), whose sum is σ = 127873720199680. Its totient is φ = 44094437202816.

The previous prime is 77313544033241. The next prime is 77313544033303. The reversal of 77313544033257 is 75233044531377.

77313544033257 is a `hidden beast` number, since 7 + 7 + 3 + 1 + 354 + 4 + 0 + 33 + 257 = 666.

It is not a de Polignac number, because 77313544033257 - 2⁴ = 77313544033241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77313544033207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68089344 + ... + 69215502.

Almost surely, 2^{77313544033257} is an apocalyptic number.

It is an amenable number.

77313544033257 is a deficient number, since it is larger than the sum of its proper divisors (50560176166423).

77313544033257 is a wasteful number, since it uses less digits than its factorization.

77313544033257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128262 (or 1128259 counting only the distinct ones).

The product of its (nonzero) digits is 22226400, while the sum is 54.

The spelling of 77313544033257 in words is "seventy-seven trillion, three hundred thirteen billion, five hundred forty-four million, thirty-three thousand, two hundred fifty-seven".