12445954551 has 6 divisors (see below), whose sum is σ = 17977489920. Its totient is φ = 8297303028.

The previous prime is 12445954519. The next prime is 12445954561. The reversal of 12445954551 is 15545954421.

12445954551 is a `hidden beast` number, since 1 + 2 + 4 + 4 + 5 + 95 + 4 + 551 = 666.

It is not a de Polignac number, because 12445954551 - 2⁵ = 12445954519 is a prime.

It is a super-2 number, since 2×12445954551² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12445954497 and 12445954506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12445954561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 691441911 + ... + 691441928.

It is an arithmetic number, because the mean of its divisors is an integer number (2996248320).

Almost surely, 2^12445954551 is an apocalyptic number.

12445954551 is a deficient number, since it is larger than the sum of its proper divisors (5531535369).

12445954551 is a wasteful number, since it uses less digits than its factorization.

12445954551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382883845 (or 1382883842 counting only the distinct ones).

The product of its digits is 720000, while the sum is 45.

The spelling of 12445954551 in words is "twelve billion, four hundred forty-five million, nine hundred fifty-four thousand, five hundred fifty-one".