12279598551 has 24 divisors (see below), whose sum is σ = 19677640320. Its totient is φ = 7316038800.

The previous prime is 12279598549. The next prime is 12279598553. The reversal of 12279598551 is 15589597221.

12279598551 is a `hidden beast` number, since 12 + 2 + 79 + 5 + 9 + 8 + 551 = 666.

It is an interprime number because it is at equal distance from previous prime (12279598549) and next prime (12279598553).

It is not a de Polignac number, because 12279598551 - 2¹ = 12279598549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12279598553) 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, 1045315 + ... + 1056996.

It is an arithmetic number, because the mean of its divisors is an integer number (819901680).

Almost surely, 2^12279598551 is an apocalyptic number.

12279598551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12279598551 is a deficient number, since it is larger than the sum of its proper divisors (7398041769).

12279598551 is a wasteful number, since it uses less digits than its factorization.

12279598551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102387 (or 2102384 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 54.

The spelling of 12279598551 in words is "twelve billion, two hundred seventy-nine million, five hundred ninety-eight thousand, five hundred fifty-one".