129720603472 has 40 divisors (see below), whose sum is σ = 258194963552. Its totient is φ = 63090576000.

The previous prime is 129720603457. The next prime is 129720603479. The reversal of 129720603472 is 274306027921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129720603479) 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, 2371147 + ... + 2425237.

Almost surely, 2^129720603472 is an apocalyptic number.

It is an amenable number.

129720603472 is a deficient number, since it is larger than the sum of its proper divisors (128474360080).

129720603472 is a wasteful number, since it uses less digits than its factorization.

129720603472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58187 (or 58181 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 43.

The spelling of 129720603472 in words is "one hundred twenty-nine billion, seven hundred twenty million, six hundred three thousand, four hundred seventy-two".