15948980837 has 2 divisors, whose sum is σ = 15948980838. Its totient is φ = 15948980836.

The previous prime is 15948980819. The next prime is 15948980863. The reversal of 15948980837 is 73808984951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15581530276 + 367450561 = 124826^2 + 19169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15948980837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15948980837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15948985837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7974490418 + 7974490419.

It is an arithmetic number, because the mean of its divisors is an integer number (7974490419).

Almost surely, 2^15948980837 is an apocalyptic number.

It is an amenable number.

15948980837 is a deficient number, since it is larger than the sum of its proper divisors (1).

15948980837 is an equidigital number, since it uses as much as digits as its factorization.

15948980837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17418240, while the sum is 62.

The spelling of 15948980837 in words is "fifteen billion, nine hundred forty-eight million, nine hundred eighty thousand, eight hundred thirty-seven".