15993000769 has 2 divisors, whose sum is σ = 15993000770. Its totient is φ = 15993000768.

The previous prime is 15993000761. The next prime is 15993000817. The reversal of 15993000769 is 96700039951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12334323600 + 3658677169 = 111060^2 + 60487^2 .

It is a cyclic number.

It is not a de Polignac number, because 15993000769 - 2³ = 15993000761 is a prime.

It is a super-2 number, since 2×15993000769² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15993000761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7996500384 + 7996500385.

It is an arithmetic number, because the mean of its divisors is an integer number (7996500385).

Almost surely, 2^15993000769 is an apocalyptic number.

It is an amenable number.

15993000769 is a deficient number, since it is larger than the sum of its proper divisors (1).

15993000769 is an equidigital number, since it uses as much as digits as its factorization.

15993000769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 459270, while the sum is 49.

The spelling of 15993000769 in words is "fifteen billion, nine hundred ninety-three million, seven hundred sixty-nine", and thus it is an aban number.