2786621224138 has 16 divisors (see below), whose sum is σ = 4261558801536. Its totient is φ = 1366135701840.

The previous prime is 2786621224091. The next prime is 2786621224139. The reversal of 2786621224138 is 8314221266872.

It is not an unprimeable number, because it can be changed into a prime (2786621224139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8355198 + ... + 8682313.

It is an arithmetic number, because the mean of its divisors is an integer number (266347425096).

Almost surely, 2^{2786621224138} is an apocalyptic number.

2786621224138 is a deficient number, since it is larger than the sum of its proper divisors (1474937577398).

2786621224138 is a wasteful number, since it uses less digits than its factorization.

2786621224138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17039109.

The product of its digits is 3096576, while the sum is 52.

The spelling of 2786621224138 in words is "two trillion, seven hundred eighty-six billion, six hundred twenty-one million, two hundred twenty-four thousand, one hundred thirty-eight".