129313769280 has 112 divisors (see below), whose sum is σ = 420119519424. Its totient is φ = 33681715200.

The previous prime is 129313769251. The next prime is 129313769317. The reversal of 129313769280 is 82967313921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1525021 + ... + 1607580.

Almost surely, 2^129313769280 is an apocalyptic number.

129313769280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129313769280 is an abundant number, since it is smaller than the sum of its proper divisors (290805750144).

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

129313769280 is a wasteful number, since it uses less digits than its factorization.

129313769280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132664 (or 3132654 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 129313769280 in words is "one hundred twenty-nine billion, three hundred thirteen million, seven hundred sixty-nine thousand, two hundred eighty".