57141891840 has 432 divisors, whose sum is σ = 209356487424. Its totient is φ = 13247815680.

The previous prime is 57141891809. The next prime is 57141891841. The reversal of 57141891840 is 4819814175.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 57141891840.

It is not an unprimeable number, because it can be changed into a prime (57141891841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10684047 + ... + 10689393.

Almost surely, 2^57141891840 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 57141891840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104678243712).

57141891840 is an abundant number, since it is smaller than the sum of its proper divisors (152214595584).

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

57141891840 is a wasteful number, since it uses less digits than its factorization.

57141891840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5416 (or 5391 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 48.

The spelling of 57141891840 in words is "fifty-seven billion, one hundred forty-one million, eight hundred ninety-one thousand, eight hundred forty".