2137291818543 has 96 divisors (see below), whose sum is σ = 3732639805440. Its totient is φ = 1152058152960.

The previous prime is 2137291818469. The next prime is 2137291818553. The reversal of 2137291818543 is 3458181927312.

2137291818543 is a `hidden beast` number, since 2 + 1 + 3 + 7 + 2 + 91 + 8 + 1 + 8 + 543 = 666.

It is not a de Polignac number, because 2137291818543 - 2²⁴ = 2137275041327 is a prime.

It is a super-2 number, since 2×2137291818543² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2137291818543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2137291818553) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 100838355 + ... + 100859547.

It is an arithmetic number, because the mean of its divisors is an integer number (38881664640).

Almost surely, 2^{2137291818543} is an apocalyptic number.

2137291818543 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2137291818543 is a deficient number, since it is larger than the sum of its proper divisors (1595347986897).

2137291818543 is a wasteful number, since it uses less digits than its factorization.

2137291818543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22189 (or 22186 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The spelling of 2137291818543 in words is "two trillion, one hundred thirty-seven billion, two hundred ninety-one million, eight hundred eighteen thousand, five hundred forty-three".