129762954648 has 72 divisors (see below), whose sum is σ = 370911843900. Its totient is φ = 40977766944.

The previous prime is 129762954571. The next prime is 129762954683. The reversal of 129762954648 is 846459267921.

129762954648 is a `hidden beast` number, since 1 + 29 + 7 + 6 + 29 + 546 + 48 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2470218 + ... + 2522201.

Almost surely, 2^129762954648 is an apocalyptic number.

129762954648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

129762954648 is an abundant number, since it is smaller than the sum of its proper divisors (241148889252).

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

129762954648 is a wasteful number, since it uses less digits than its factorization.

129762954648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4992469 (or 4992443 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 129762954648 in words is "one hundred twenty-nine billion, seven hundred sixty-two million, nine hundred fifty-four thousand, six hundred forty-eight".