2157143477432 has 32 divisors (see below), whose sum is σ = 4070425096080. Its totient is φ = 1071699932160.

The previous prime is 2157143477417. The next prime is 2157143477441. The reversal of 2157143477432 is 2347743417512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5351432 + ... + 5740392.

Almost surely, 2^{2157143477432} is an apocalyptic number.

It is an amenable number.

2157143477432 is a deficient number, since it is larger than the sum of its proper divisors (1913281618648).

2157143477432 is a wasteful number, since it uses less digits than its factorization.

2157143477432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393383 (or 393379 counting only the distinct ones).

The product of its digits is 3951360, while the sum is 50.

The spelling of 2157143477432 in words is "two trillion, one hundred fifty-seven billion, one hundred forty-three million, four hundred seventy-seven thousand, four hundred thirty-two".