57983219981 has 8 divisors (see below), whose sum is σ = 59871721728. Its totient is φ = 56095848000.

The previous prime is 57983219953. The next prime is 57983219989. The reversal of 57983219981 is 18991238975.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57983219981 is a prime.

It is a super-2 number, since 2×57983219981² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57983219989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177500 + ... + 384021.

It is an arithmetic number, because the mean of its divisors is an integer number (7483965216).

Almost surely, 2^57983219981 is an apocalyptic number.

It is an amenable number.

57983219981 is a deficient number, since it is larger than the sum of its proper divisors (1888501747).

57983219981 is a wasteful number, since it uses less digits than its factorization.

57983219981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564883.

The product of its digits is 9797760, while the sum is 62.

The spelling of 57983219981 in words is "fifty-seven billion, nine hundred eighty-three million, two hundred nineteen thousand, nine hundred eighty-one".