15496990757 has 2 divisors, whose sum is σ = 15496990758. Its totient is φ = 15496990756.

The previous prime is 15496990711. The next prime is 15496990771. The reversal of 15496990757 is 75709969451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14802615556 + 694375201 = 121666^2 + 26351^2 .

It is a cyclic number.

It is not a de Polignac number, because 15496990757 - 2¹⁶ = 15496925221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15496990757.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15496990787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7748495378 + 7748495379.

It is an arithmetic number, because the mean of its divisors is an integer number (7748495379).

Almost surely, 2^15496990757 is an apocalyptic number.

It is an amenable number.

15496990757 is a deficient number, since it is larger than the sum of its proper divisors (1).

15496990757 is an equidigital number, since it uses as much as digits as its factorization.

15496990757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21432600, while the sum is 62.

The spelling of 15496990757 in words is "fifteen billion, four hundred ninety-six million, nine hundred ninety thousand, seven hundred fifty-seven".