12904153881 has 4 divisors (see below), whose sum is σ = 17205538512. Its totient is φ = 8602769252.

The previous prime is 12904153879. The next prime is 12904153957. The reversal of 12904153881 is 18835140921.

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 12904153881 - 2¹ = 12904153879 is a prime.

It is a super-2 number, since 2×12904153881² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12904153811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2150692311 + ... + 2150692316.

It is an arithmetic number, because the mean of its divisors is an integer number (4301384628).

Almost surely, 2^12904153881 is an apocalyptic number.

It is an amenable number.

12904153881 is a deficient number, since it is larger than the sum of its proper divisors (4301384631).

12904153881 is an equidigital number, since it uses as much as digits as its factorization.

12904153881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4301384630.

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 12904153881 in words is "twelve billion, nine hundred four million, one hundred fifty-three thousand, eight hundred eighty-one".