11726400204642 has 32 divisors (see below), whose sum is σ = 23638487513472. Its totient is φ = 3877973345664.

The previous prime is 11726400204613. The next prime is 11726400204653. The reversal of 11726400204642 is 24640200462711.

It is a self number, because there is not a number n which added to its sum of digits gives 11726400204642.

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 15 ways as a sum of consecutive naturals, for example, 14753518 + ... + 15528009.

It is an arithmetic number, because the mean of its divisors is an integer number (738702734796).

Almost surely, 2^{11726400204642} is an apocalyptic number.

11726400204642 is an abundant number, since it is smaller than the sum of its proper divisors (11912087308830).

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

11726400204642 is a wasteful number, since it uses less digits than its factorization.

11726400204642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30282042.

The product of its (nonzero) digits is 129024, while the sum is 39.

The spelling of 11726400204642 in words is "eleven trillion, seven hundred twenty-six billion, four hundred million, two hundred four thousand, six hundred forty-two".