12551413347 has 16 divisors (see below), whose sum is σ = 20285112960. Its totient is φ = 7606917000.

The previous prime is 12551413333. The next prime is 12551413373. The reversal of 12551413347 is 74331415521.

12551413347 is a `hidden beast` number, since 1 + 2 + 5 + 514 + 133 + 4 + 7 = 666.

It is not a de Polignac number, because 12551413347 - 2²² = 12547219043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12551413397) 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, 21130029 + ... + 21130622.

It is an arithmetic number, because the mean of its divisors is an integer number (1267819560).

Almost surely, 2^12551413347 is an apocalyptic number.

12551413347 is a deficient number, since it is larger than the sum of its proper divisors (7733699613).

12551413347 is a wasteful number, since it uses less digits than its factorization.

12551413347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42260671 (or 42260665 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

Adding to 12551413347 its reverse (74331415521), we get a palindrome (86882828868).

The spelling of 12551413347 in words is "twelve billion, five hundred fifty-one million, four hundred thirteen thousand, three hundred forty-seven".