2157424246524 has 12 divisors (see below), whose sum is σ = 5033989908584. Its totient is φ = 719141415504.

The previous prime is 2157424246517. The next prime is 2157424246529. The reversal of 2157424246524 is 4256424247512.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157424246529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89892676927 + ... + 89892676950.

Almost surely, 2^{2157424246524} is an apocalyptic number.

It is an amenable number.

2157424246524 is an abundant number, since it is smaller than the sum of its proper divisors (2876565662060).

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

2157424246524 is a wasteful number, since it uses less digits than its factorization.

2157424246524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179785353884 (or 179785353882 counting only the distinct ones).

The product of its digits is 4300800, while the sum is 48.

The spelling of 2157424246524 in words is "two trillion, one hundred fifty-seven billion, four hundred twenty-four million, two hundred forty-six thousand, five hundred twenty-four".