12412154491 has 16 divisors (see below), whose sum is σ = 14267727360. Its totient is φ = 10678992480.

The previous prime is 12412154477. The next prime is 12412154591. The reversal of 12412154491 is 19445121421.

It is a cyclic number.

It is not a de Polignac number, because 12412154491 - 2⁹ = 12412153979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12412154411) 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, 178590 + ... + 238156.

It is an arithmetic number, because the mean of its divisors is an integer number (891732960).

Almost surely, 2^12412154491 is an apocalyptic number.

12412154491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12412154491 is a deficient number, since it is larger than the sum of its proper divisors (1855572869).

12412154491 is a wasteful number, since it uses less digits than its factorization.

12412154491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60594.

The product of its digits is 11520, while the sum is 34.

The spelling of 12412154491 in words is "twelve billion, four hundred twelve million, one hundred fifty-four thousand, four hundred ninety-one".