2151642937936 has 20 divisors (see below), whose sum is σ = 4174315227892. Its totient is φ = 1074400298496.

The previous prime is 2151642937933. The next prime is 2151642937957. The reversal of 2151642937936 is 6397392461512.

It can be written as a sum of positive squares in 2 ways, for example, as 1076937515536 + 1074705422400 = 1037756^2 + 1036680^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151642937933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88810665 + ... + 88834888.

Almost surely, 2^{2151642937936} is an apocalyptic number.

It is an amenable number.

2151642937936 is a deficient number, since it is larger than the sum of its proper divisors (2022672289956).

2151642937936 is a wasteful number, since it uses less digits than its factorization.

2151642937936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177646318 (or 177646312 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 58.

The spelling of 2151642937936 in words is "two trillion, one hundred fifty-one billion, six hundred forty-two million, nine hundred thirty-seven thousand, nine hundred thirty-six".