57945569880 has 128 divisors (see below), whose sum is σ = 189818277120. Its totient is φ = 14034209280.

The previous prime is 57945569879. The next prime is 57945569881. The reversal of 57945569880 is 8896554975.

It is an interprime number because it is at equal distance from previous prime (57945569879) and next prime (57945569881).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57945569881) 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, 1422679 + ... + 1462841.

It is an arithmetic number, because the mean of its divisors is an integer number (1482955290).

Almost surely, 2^57945569880 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 57945569880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94909138560).

57945569880 is an abundant number, since it is smaller than the sum of its proper divisors (131872707240).

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

57945569880 is a wasteful number, since it uses less digits than its factorization.

57945569880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41281 (or 41277 counting only the distinct ones).

The product of its (nonzero) digits is 108864000, while the sum is 66.

The spelling of 57945569880 in words is "fifty-seven billion, nine hundred forty-five million, five hundred sixty-nine thousand, eight hundred eighty".