15012745973 has 2 divisors, whose sum is σ = 15012745974. Its totient is φ = 15012745972.

The previous prime is 15012745927. The next prime is 15012745991. The reversal of 15012745973 is 37954721051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14938217284 + 74528689 = 122222^2 + 8633^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15012745973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15012745903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7506372986 + 7506372987.

It is an arithmetic number, because the mean of its divisors is an integer number (7506372987).

Almost surely, 2^15012745973 is an apocalyptic number.

It is an amenable number.

15012745973 is a deficient number, since it is larger than the sum of its proper divisors (1).

15012745973 is an equidigital number, since it uses as much as digits as its factorization.

15012745973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 44.

The spelling of 15012745973 in words is "fifteen billion, twelve million, seven hundred forty-five thousand, nine hundred seventy-three".