404012186961 has 4 divisors (see below), whose sum is σ = 538682915952. Its totient is φ = 269341457972.

The previous prime is 404012186891. The next prime is 404012186987. The reversal of 404012186961 is 169681210404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 404012186961 - 2¹⁴ = 404012170577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (404012182961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67335364491 + ... + 67335364496.

It is an arithmetic number, because the mean of its divisors is an integer number (134670728988).

Almost surely, 2^404012186961 is an apocalyptic number.

It is an amenable number.

404012186961 is a deficient number, since it is larger than the sum of its proper divisors (134670728991).

404012186961 is a wasteful number, since it uses less digits than its factorization.

404012186961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134670728990.

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 404012186961 in words is "four hundred four billion, twelve million, one hundred eighty-six thousand, nine hundred sixty-one".