57222746812 has 96 divisors (see below), whose sum is σ = 127212180480. Its totient is φ = 21875857920.

The previous prime is 57222746809. The next prime is 57222746863. The reversal of 57222746812 is 21864722275.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4422889 + ... + 4435807.

It is an arithmetic number, because the mean of its divisors is an integer number (1325126880).

Almost surely, 2^57222746812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57222746812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63606090240).

57222746812 is an abundant number, since it is smaller than the sum of its proper divisors (69989433668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57222746812 is a wasteful number, since it uses less digits than its factorization.

57222746812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13211 (or 13209 counting only the distinct ones).

The product of its digits is 752640, while the sum is 46.

The spelling of 57222746812 in words is "fifty-seven billion, two hundred twenty-two million, seven hundred forty-six thousand, eight hundred twelve".