12464624181 has 16 divisors (see below), whose sum is σ = 17260881920. Its totient is φ = 7992347760.

The previous prime is 12464624141. The next prime is 12464624197. The reversal of 12464624181 is 18142646421.

It is not a de Polignac number, because 12464624181 - 2²³ = 12456235573 is a prime.

It is a super-2 number, since 2×12464624181² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12464624141) 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, 395971 + ... + 426288.

It is an arithmetic number, because the mean of its divisors is an integer number (1078805120).

Almost surely, 2^12464624181 is an apocalyptic number.

It is an amenable number.

12464624181 is a deficient number, since it is larger than the sum of its proper divisors (4796257739).

12464624181 is a wasteful number, since it uses less digits than its factorization.

12464624181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822456.

The product of its digits is 73728, while the sum is 39.

The spelling of 12464624181 in words is "twelve billion, four hundred sixty-four million, six hundred twenty-four thousand, one hundred eighty-one".