57077923621 has 4 divisors (see below), whose sum is σ = 57080699200. Its totient is φ = 57075148044.

The previous prime is 57077923613. The next prime is 57077923649. The reversal of 57077923621 is 12632977075.

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 57077923621 - 2³ = 57077923613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57077923681) 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, 1356711 + ... + 1398148.

It is an arithmetic number, because the mean of its divisors is an integer number (14270174800).

Almost surely, 2^57077923621 is an apocalyptic number.

It is an amenable number.

57077923621 is a deficient number, since it is larger than the sum of its proper divisors (2775579).

57077923621 is a wasteful number, since it uses less digits than its factorization.

57077923621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775578.

The product of its (nonzero) digits is 1111320, while the sum is 49.

The spelling of 57077923621 in words is "fifty-seven billion, seventy-seven million, nine hundred twenty-three thousand, six hundred twenty-one".