12411521451 has 24 divisors (see below), whose sum is σ = 20691731424. Its totient is φ = 7022073600.

The previous prime is 12411521443. The next prime is 12411521453. The reversal of 12411521451 is 15412511421.

12411521451 is a `hidden beast` number, since 124 + 11 + 521 + 4 + 5 + 1 = 666.

It is not a de Polignac number, because 12411521451 - 2³ = 12411521443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12411521453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 968926 + ... + 981651.

It is an arithmetic number, because the mean of its divisors is an integer number (862155476).

Almost surely, 2^12411521451 is an apocalyptic number.

12411521451 is a deficient number, since it is larger than the sum of its proper divisors (8280209973).

12411521451 is a wasteful number, since it uses less digits than its factorization.

12411521451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950691 (or 1950688 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

The spelling of 12411521451 in words is "twelve billion, four hundred eleven million, five hundred twenty-one thousand, four hundred fifty-one".