57489021340 has 48 divisors (see below), whose sum is σ = 122138331840. Its totient is φ = 22727006720.

The previous prime is 57489021323. The next prime is 57489021347. The reversal of 57489021340 is 4312098475.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57489021347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4873089 + ... + 4884871.

It is an arithmetic number, because the mean of its divisors is an integer number (2544548580).

Almost surely, 2^57489021340 is an apocalyptic number.

It is an amenable number.

57489021340 is an abundant number, since it is smaller than the sum of its proper divisors (64649310500).

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

57489021340 is a wasteful number, since it uses less digits than its factorization.

57489021340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14622 (or 14620 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 57489021340 in words is "fifty-seven billion, four hundred eighty-nine million, twenty-one thousand, three hundred forty".