12051577404 has 36 divisors (see below), whose sum is σ = 30600338496. Its totient is φ = 3999175488.

The previous prime is 12051577379. The next prime is 12051577411. The reversal of 12051577404 is 40477515021.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 742569 + ... + 758624.

Almost surely, 2^12051577404 is an apocalyptic number.

It is an amenable number.

12051577404 is an abundant number, since it is smaller than the sum of its proper divisors (18548761092).

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

12051577404 is a wasteful number, since it uses less digits than its factorization.

12051577404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501426 (or 1501421 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The spelling of 12051577404 in words is "twelve billion, fifty-one million, five hundred seventy-seven thousand, four hundred four".