7905596121 has 12 divisors (see below), whose sum is σ = 11431796272. Its totient is φ = 5264581176.

The previous prime is 7905596117. The next prime is 7905596137. The reversal of 7905596121 is 1216955097.

7905596121 is a `hidden beast` number, since 7 + 90 + 559 + 6 + 1 + 2 + 1 = 666.

It is not a de Polignac number, because 7905596121 - 2² = 7905596117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7905596141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 476071 + ... + 492396.

Almost surely, 2^7905596121 is an apocalyptic number.

It is an amenable number.

7905596121 is a deficient number, since it is larger than the sum of its proper divisors (3526200151).

7905596121 is a wasteful number, since it uses less digits than its factorization.

7905596121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969380 (or 969377 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 45.

The square root of 7905596121 is about 88913.4192402924. The cubic root of 7905596121 is about 1992.1018608398.

The spelling of 7905596121 in words is "seven billion, nine hundred five million, five hundred ninety-six thousand, one hundred twenty-one".