57128468077 has 4 divisors (see below), whose sum is σ = 57168616000. Its totient is φ = 57088320156.

The previous prime is 57128468069. The next prime is 57128468083. The reversal of 57128468077 is 77086482175.

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 57128468077 - 2³ = 57128468069 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 (57128468477) 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, 20071827 + ... + 20074672.

It is an arithmetic number, because the mean of its divisors is an integer number (14292154000).

Almost surely, 2^57128468077 is an apocalyptic number.

It is an amenable number.

57128468077 is a deficient number, since it is larger than the sum of its proper divisors (40147923).

57128468077 is a wasteful number, since it uses less digits than its factorization.

57128468077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40147922.

The product of its (nonzero) digits is 5268480, while the sum is 55.

The spelling of 57128468077 in words is "fifty-seven billion, one hundred twenty-eight million, four hundred sixty-eight thousand, seventy-seven".