2139272964540 has 120 divisors (see below), whose sum is σ = 6942391727040. Its totient is φ = 550801302912.

The previous prime is 2139272964527. The next prime is 2139272964551. The reversal of 2139272964540 is 454692729312.

It is a happy number.

2139272964540 is a `hidden beast` number, since 2 + 1 + 3 + 9 + 2 + 7 + 2 + 96 + 4 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 22720932 + ... + 22814891.

It is an arithmetic number, because the mean of its divisors is an integer number (57853264392).

Almost surely, 2^{2139272964540} is an apocalyptic number.

2139272964540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2139272964540 is an abundant number, since it is smaller than the sum of its proper divisors (4803118762500).

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

2139272964540 is a wasteful number, since it uses less digits than its factorization.

2139272964540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45535873 (or 45535862 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 2139272964540 in words is "two trillion, one hundred thirty-nine billion, two hundred seventy-two million, nine hundred sixty-four thousand, five hundred forty".