57999021543 has 24 divisors (see below), whose sum is σ = 87563327488. Its totient is φ = 38361537144.

The previous prime is 57999021541. The next prime is 57999021557. The reversal of 57999021543 is 34512099975.

57999021543 is a `hidden beast` number, since 5 + 7 + 9 + 9 + 90 + 2 + 1 + 543 = 666.

It is not a de Polignac number, because 57999021543 - 2¹ = 57999021541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57999021543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57999021541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 908821 + ... + 970542.

Almost surely, 2^57999021543 is an apocalyptic number.

57999021543 is a deficient number, since it is larger than the sum of its proper divisors (29564305945).

57999021543 is a wasteful number, since it uses less digits than its factorization.

57999021543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879505 (or 1879493 counting only the distinct ones).

The product of its (nonzero) digits is 3061800, while the sum is 54.

The spelling of 57999021543 in words is "fifty-seven billion, nine hundred ninety-nine million, twenty-one thousand, five hundred forty-three".