129494841264 has 100 divisors (see below), whose sum is σ = 386885942080. Its totient is φ = 41772516480.

The previous prime is 129494841209. The next prime is 129494841299. The reversal of 129494841264 is 462148494921.

129494841264 is a `hidden beast` number, since 1 + 2 + 9 + 494 + 84 + 12 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 129494841264.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1571419 + ... + 1651770.

Almost surely, 2^129494841264 is an apocalyptic number.

It is an amenable number.

129494841264 is an abundant number, since it is smaller than the sum of its proper divisors (257391100816).

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

129494841264 is a wasteful number, since it uses less digits than its factorization.

129494841264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3223240 (or 3223225 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The spelling of 129494841264 in words is "one hundred twenty-nine billion, four hundred ninety-four million, eight hundred forty-one thousand, two hundred sixty-four".