7901597142 has 20 divisors (see below), whose sum is σ = 17705430996. Its totient is φ = 2633865660.

The previous prime is 7901597141. The next prime is 7901597147. The reversal of 7901597142 is 2417951097.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7901597141) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 24387484 + ... + 24387807.

Almost surely, 2^7901597142 is an apocalyptic number.

7901597142 is an abundant number, since it is smaller than the sum of its proper divisors (9803833854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7901597142 is a wasteful number, since it uses less digits than its factorization.

7901597142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48775305 (or 48775296 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 45.

The square root of 7901597142 is about 88890.9283447979. The cubic root of 7901597142 is about 1991.7659082224.

The spelling of 7901597142 in words is "seven billion, nine hundred one million, five hundred ninety-seven thousand, one hundred forty-two".