11621134347826 has 16 divisors (see below), whose sum is σ = 17627748233400. Its totient is φ = 5745219639808.

The previous prime is 11621134347821. The next prime is 11621134347857. The reversal of 11621134347826 is 62874343112611.

It can be written as a sum of positive squares in 4 ways, for example, as 7222253130625 + 4398881217201 = 2687425^2 + 2097351^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11621134347826.

It is not an unprimeable number, because it can be changed into a prime (11621134347821) 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, 20091030 + ... + 20661358.

Almost surely, 2^{11621134347826} is an apocalyptic number.

11621134347826 is a deficient number, since it is larger than the sum of its proper divisors (6006613885574).

11621134347826 is a wasteful number, since it uses less digits than its factorization.

11621134347826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684893.

The product of its digits is 1161216, while the sum is 49.

The spelling of 11621134347826 in words is "eleven trillion, six hundred twenty-one billion, one hundred thirty-four million, three hundred forty-seven thousand, eight hundred twenty-six".