129392444319 has 8 divisors (see below), whose sum is σ = 172535164032. Its totient is φ = 86255677080.

The previous prime is 129392444297. The next prime is 129392444329. The reversal of 129392444319 is 913444293921.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 129392444319 - 2⁵ = 129392444287 is a prime.

It is a super-2 number, since 2×129392444319² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129392444329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1437147 + ... + 1524524.

It is an arithmetic number, because the mean of its divisors is an integer number (21566895504).

Almost surely, 2^129392444319 is an apocalyptic number.

129392444319 is a deficient number, since it is larger than the sum of its proper divisors (43142719713).

129392444319 is a wasteful number, since it uses less digits than its factorization.

129392444319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2976237.

The product of its digits is 1679616, while the sum is 51.

The spelling of 129392444319 in words is "one hundred twenty-nine billion, three hundred ninety-two million, four hundred forty-four thousand, three hundred nineteen".