57773575821 has 32 divisors (see below), whose sum is σ = 83911056768. Its totient is φ = 35146229760.

The previous prime is 57773575819. The next prime is 57773575837. The reversal of 57773575821 is 12857537775.

It is not a de Polignac number, because 57773575821 - 2¹ = 57773575819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57773575721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1265230 + ... + 1310096.

It is an arithmetic number, because the mean of its divisors is an integer number (2622220524).

Almost surely, 2^57773575821 is an apocalyptic number.

It is an amenable number.

57773575821 is a deficient number, since it is larger than the sum of its proper divisors (26137480947).

57773575821 is a wasteful number, since it uses less digits than its factorization.

57773575821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45261.

The product of its digits is 14406000, while the sum is 57.

The spelling of 57773575821 in words is "fifty-seven billion, seven hundred seventy-three million, five hundred seventy-five thousand, eight hundred twenty-one".