15207428129 has 2 divisors, whose sum is σ = 15207428130. Its totient is φ = 15207428128.

The previous prime is 15207428123. The next prime is 15207428177. The reversal of 15207428129 is 92182470251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14942617600 + 264810529 = 122240^2 + 16273^2 .

It is a cyclic number.

It is not a de Polignac number, because 15207428129 - 2¹⁶ = 15207362593 is a prime.

It is not a weakly prime, because it can be changed into another prime (15207428123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7603714064 + 7603714065.

It is an arithmetic number, because the mean of its divisors is an integer number (7603714065).

Almost surely, 2^15207428129 is an apocalyptic number.

It is an amenable number.

15207428129 is a deficient number, since it is larger than the sum of its proper divisors (1).

15207428129 is an equidigital number, since it uses as much as digits as its factorization.

15207428129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 15207428129 in words is "fifteen billion, two hundred seven million, four hundred twenty-eight thousand, one hundred twenty-nine".