2621132615642 has 16 divisors (see below), whose sum is σ = 4067814353760. Its totient is φ = 1265206489008.

The previous prime is 2621132615627. The next prime is 2621132615681. The reversal of 2621132615642 is 2465162311262.

It is a self number, because there is not a number n which added to its sum of digits gives 2621132615642.

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, 2556308 + ... + 3431759.

It is an arithmetic number, because the mean of its divisors is an integer number (254238397110).

Almost surely, 2^{2621132615642} is an apocalyptic number.

2621132615642 is a deficient number, since it is larger than the sum of its proper divisors (1446681738118).

2621132615642 is a wasteful number, since it uses less digits than its factorization.

2621132615642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5995645.

The product of its digits is 207360, while the sum is 41.

The spelling of 2621132615642 in words is "two trillion, six hundred twenty-one billion, one hundred thirty-two million, six hundred fifteen thousand, six hundred forty-two".