57347166421 has 4 divisors (see below), whose sum is σ = 58073080000. Its totient is φ = 56621252844.

The previous prime is 57347166407. The next prime is 57347166439. The reversal of 57347166421 is 12466174375.

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 57347166421 - 2¹¹ = 57347164373 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 (57347166491) 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, 362956671 + ... + 362956828.

It is an arithmetic number, because the mean of its divisors is an integer number (14518270000).

Almost surely, 2^57347166421 is an apocalyptic number.

It is an amenable number.

57347166421 is a deficient number, since it is larger than the sum of its proper divisors (725913579).

57347166421 is an equidigital number, since it uses as much as digits as its factorization.

57347166421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725913578.

The product of its digits is 846720, while the sum is 46.

The spelling of 57347166421 in words is "fifty-seven billion, three hundred forty-seven million, one hundred sixty-six thousand, four hundred twenty-one".