83009975121 has 32 divisors (see below), whose sum is σ = 137064988800. Its totient is φ = 49343385600.

The previous prime is 83009975071. The next prime is 83009975179. The reversal of 83009975121 is 12157990038.

It is not a de Polignac number, because 83009975121 - 2⁹ = 83009974609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83009977121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4750480 + ... + 4767921.

It is an arithmetic number, because the mean of its divisors is an integer number (4283280900).

Almost surely, 2^83009975121 is an apocalyptic number.

It is an amenable number.

83009975121 is a deficient number, since it is larger than the sum of its proper divisors (54055013679).

83009975121 is a wasteful number, since it uses less digits than its factorization.

83009975121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9518446 (or 9518440 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The spelling of 83009975121 in words is "eighty-three billion, nine million, nine hundred seventy-five thousand, one hundred twenty-one".