12004795491 has 16 divisors (see below), whose sum is σ = 17239627776. Its totient is φ = 7386721056.

The previous prime is 12004795489. The next prime is 12004795493. The reversal of 12004795491 is 19459740021.

It is an interprime number because it is at equal distance from previous prime (12004795489) and next prime (12004795493).

It is not a de Polignac number, because 12004795491 - 2¹ = 12004795489 is a prime.

It is a super-2 number, since 2×12004795491² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12004795493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 616876 + ... + 636038.

It is an arithmetic number, because the mean of its divisors is an integer number (1077476736).

Almost surely, 2^12004795491 is an apocalyptic number.

12004795491 is a deficient number, since it is larger than the sum of its proper divisors (5234832285).

12004795491 is a wasteful number, since it uses less digits than its factorization.

12004795491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35242.

The product of its (nonzero) digits is 90720, while the sum is 42.

The spelling of 12004795491 in words is "twelve billion, four million, seven hundred ninety-five thousand, four hundred ninety-one".