11521075621404 has 48 divisors (see below), whose sum is σ = 27460123358976. Its totient is φ = 3758631945600.

The previous prime is 11521075621309. The next prime is 11521075621439. The reversal of 11521075621404 is 40412657012511.

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, 49235062 + ... + 49468509.

It is an arithmetic number, because the mean of its divisors is an integer number (572085903312).

Almost surely, 2^{11521075621404} is an apocalyptic number.

It is an amenable number.

11521075621404 is an abundant number, since it is smaller than the sum of its proper divisors (15939047737572).

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

11521075621404 is a wasteful number, since it uses less digits than its factorization.

11521075621404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98703786 (or 98703784 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The spelling of 11521075621404 in words is "eleven trillion, five hundred twenty-one billion, seventy-five million, six hundred twenty-one thousand, four hundred four".