129962015389 has 2 divisors, whose sum is σ = 129962015390. Its totient is φ = 129962015388.

The previous prime is 129962015383. The next prime is 129962015401. The reversal of 129962015389 is 983510269921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123652096164 + 6309919225 = 351642^2 + 79435^2 .

It is a cyclic number.

It is not a de Polignac number, because 129962015389 - 2¹⁵ = 129961982621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129962015383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64981007694 + 64981007695.

It is an arithmetic number, because the mean of its divisors is an integer number (64981007695).

Almost surely, 2^129962015389 is an apocalyptic number.

It is an amenable number.

129962015389 is a deficient number, since it is larger than the sum of its proper divisors (1).

129962015389 is an equidigital number, since it uses as much as digits as its factorization.

129962015389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2099520, while the sum is 55.

The spelling of 129962015389 in words is "one hundred twenty-nine billion, nine hundred sixty-two million, fifteen thousand, three hundred eighty-nine".