71992000125 has 192 divisors, whose sum is σ = 138426672384. Its totient is φ = 37314950400.

The previous prime is 71992000111. The next prime is 71992000133. The reversal of 71992000125 is 52100029917.

It is not a de Polignac number, because 71992000125 - 2⁷ = 71991999997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71992000125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 317145262 + ... + 317145488.

It is an arithmetic number, because the mean of its divisors is an integer number (720972252).

Almost surely, 2^71992000125 is an apocalyptic number.

71992000125 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

71992000125 is the 134157-th decagonal number.

It is an amenable number.

71992000125 is a deficient number, since it is larger than the sum of its proper divisors (66434672259).

71992000125 is a wasteful number, since it uses less digits than its factorization.

71992000125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The spelling of 71992000125 in words is "seventy-one billion, nine hundred ninety-two million, one hundred twenty-five", and thus it is an aban number.