15000747187 has 2 divisors, whose sum is σ = 15000747188. Its totient is φ = 15000747186.

The previous prime is 15000747101. The next prime is 15000747197. The reversal of 15000747187 is 78174700051.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15000747187 is a prime.

It is not a weakly prime, because it can be changed into another prime (15000747197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7500373593 + 7500373594.

It is an arithmetic number, because the mean of its divisors is an integer number (7500373594).

Almost surely, 2^15000747187 is an apocalyptic number.

15000747187 is a deficient number, since it is larger than the sum of its proper divisors (1).

15000747187 is an equidigital number, since it uses as much as digits as its factorization.

15000747187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54880, while the sum is 40.

The spelling of 15000747187 in words is "fifteen billion, seven hundred forty-seven thousand, one hundred eighty-seven".