15021992071 has 2 divisors, whose sum is σ = 15021992072. Its totient is φ = 15021992070.

The previous prime is 15021992053. The next prime is 15021992101. The reversal of 15021992071 is 17029912051.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15021992071 - 2²³ = 15013603463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15021992071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15021992371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7510996035 + 7510996036.

It is an arithmetic number, because the mean of its divisors is an integer number (7510996036).

Almost surely, 2^15021992071 is an apocalyptic number.

15021992071 is a deficient number, since it is larger than the sum of its proper divisors (1).

15021992071 is an equidigital number, since it uses as much as digits as its factorization.

15021992071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 37.

The spelling of 15021992071 in words is "fifteen billion, twenty-one million, nine hundred ninety-two thousand, seventy-one".