77753582857 has 4 divisors (see below), whose sum is σ = 81134173440. Its totient is φ = 74372992276.

The previous prime is 77753582843. The next prime is 77753582861. The reversal of 77753582857 is 75828535777.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 77753582857 - 2¹⁵ = 77753550089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77753582887) 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, 1690295257 + ... + 1690295302.

It is an arithmetic number, because the mean of its divisors is an integer number (20283543360).

Almost surely, 2^77753582857 is an apocalyptic number.

It is an amenable number.

77753582857 is a deficient number, since it is larger than the sum of its proper divisors (3380590583).

77753582857 is a wasteful number, since it uses less digits than its factorization.

77753582857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380590582.

The product of its digits is 115248000, while the sum is 64.

The spelling of 77753582857 in words is "seventy-seven billion, seven hundred fifty-three million, five hundred eighty-two thousand, eight hundred fifty-seven".