15944793071 has 2 divisors, whose sum is σ = 15944793072. Its totient is φ = 15944793070.

The previous prime is 15944793049. The next prime is 15944793089. The reversal of 15944793071 is 17039744951.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15944793071 is a prime.

It is a super-2 number, since 2×15944793071² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15944793671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7972396535 + 7972396536.

It is an arithmetic number, because the mean of its divisors is an integer number (7972396536).

Almost surely, 2^15944793071 is an apocalyptic number.

15944793071 is a deficient number, since it is larger than the sum of its proper divisors (1).

15944793071 is an equidigital number, since it uses as much as digits as its factorization.

15944793071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 50.

The spelling of 15944793071 in words is "fifteen billion, nine hundred forty-four million, seven hundred ninety-three thousand, seventy-one".