12740015551 has 2 divisors, whose sum is σ = 12740015552. Its totient is φ = 12740015550.

The previous prime is 12740015507. The next prime is 12740015573. The reversal of 12740015551 is 15551004721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12740015551 - 2⁹ = 12740015039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12740015581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6370007775 + 6370007776.

It is an arithmetic number, because the mean of its divisors is an integer number (6370007776).

Almost surely, 2^12740015551 is an apocalyptic number.

12740015551 is a deficient number, since it is larger than the sum of its proper divisors (1).

12740015551 is an equidigital number, since it uses as much as digits as its factorization.

12740015551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7000, while the sum is 31.

The spelling of 12740015551 in words is "twelve billion, seven hundred forty million, fifteen thousand, five hundred fifty-one".