7129997432 has 16 divisors (see below), whose sum is σ = 13377399000. Its totient is φ = 3562691040.

The previous prime is 7129997419. The next prime is 7129997443. The reversal of 7129997432 is 2347999217.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275294 + ... + 300077.

Almost surely, 2^7129997432 is an apocalyptic number.

It is an amenable number.

7129997432 is a deficient number, since it is larger than the sum of its proper divisors (6247401568).

7129997432 is a wasteful number, since it uses less digits than its factorization.

7129997432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576926 (or 576922 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 53.

The square root of 7129997432 is about 84439.3121241522. The cubic root of 7129997432 is about 1924.7003464082.

The spelling of 7129997432 in words is "seven billion, one hundred twenty-nine million, nine hundred ninety-seven thousand, four hundred thirty-two".