129378538760 has 32 divisors (see below), whose sum is σ = 308225343960. Its totient is φ = 48707214336.

The previous prime is 129378538759. The next prime is 129378538771. The reversal of 129378538760 is 67835873921.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 76433449156 + 52945089604 = 276466^2 + 230098^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 129378538760.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95130599 + ... + 95131958.

Almost surely, 2^129378538760 is an apocalyptic number.

129378538760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129378538760 is an abundant number, since it is smaller than the sum of its proper divisors (178846805200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129378538760 is a wasteful number, since it uses less digits than its factorization.

129378538760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190262585 (or 190262581 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 59.

The spelling of 129378538760 in words is "one hundred twenty-nine billion, three hundred seventy-eight million, five hundred thirty-eight thousand, seven hundred sixty".