11901431644404 has 48 divisors (see below), whose sum is σ = 27780860878848. Its totient is φ = 3965593694688.

The previous prime is 11901431644391. The next prime is 11901431644423. The reversal of 11901431644404 is 40444613410911.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376528369 + ... + 376559975.

It is an arithmetic number, because the mean of its divisors is an integer number (578767934976).

Almost surely, 2^{11901431644404} is an apocalyptic number.

It is an amenable number.

11901431644404 is an abundant number, since it is smaller than the sum of its proper divisors (15879429234444).

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

11901431644404 is a wasteful number, since it uses less digits than its factorization.

11901431644404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42884 (or 42882 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 11901431644404 in words is "eleven trillion, nine hundred one billion, four hundred thirty-one million, six hundred forty-four thousand, four hundred four".