12551109743 has 2 divisors, whose sum is σ = 12551109744. Its totient is φ = 12551109742.

The previous prime is 12551109733. The next prime is 12551109761. The reversal of 12551109743 is 34790115521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12551109743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12551109697 and 12551109706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12551109733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6275554871 + 6275554872.

It is an arithmetic number, because the mean of its divisors is an integer number (6275554872).

Almost surely, 2^12551109743 is an apocalyptic number.

12551109743 is a deficient number, since it is larger than the sum of its proper divisors (1).

12551109743 is an equidigital number, since it uses as much as digits as its factorization.

12551109743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 38.

The spelling of 12551109743 in words is "twelve billion, five hundred fifty-one million, one hundred nine thousand, seven hundred forty-three".