12615750761 has 2 divisors, whose sum is σ = 12615750762. Its totient is φ = 12615750760.

The previous prime is 12615750727. The next prime is 12615750811. The reversal of 12615750761 is 16705751621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12539520400 + 76230361 = 111980^2 + 8731^2 .

It is a cyclic number.

It is not a de Polignac number, because 12615750761 - 2²² = 12611556457 is a prime.

It is not a weakly prime, because it can be changed into another prime (12615752761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6307875380 + 6307875381.

It is an arithmetic number, because the mean of its divisors is an integer number (6307875381).

Almost surely, 2^12615750761 is an apocalyptic number.

It is an amenable number.

12615750761 is a deficient number, since it is larger than the sum of its proper divisors (1).

12615750761 is an equidigital number, since it uses as much as digits as its factorization.

12615750761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88200, while the sum is 41.

The spelling of 12615750761 in words is "twelve billion, six hundred fifteen million, seven hundred fifty thousand, seven hundred sixty-one".