9427945761 has 24 divisors (see below), whose sum is σ = 14696398080. Its totient is φ = 5789666016.

The previous prime is 9427945699. The next prime is 9427945763. The reversal of 9427945761 is 1675497249.

It is not a de Polignac number, because 9427945761 - 2²⁵ = 9394391329 is a prime.

It is a super-2 number, since 2×9427945761² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9427945698 and 9427945707.

It is not an unprimeable number, because it can be changed into a prime (9427945763) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28071 + ... + 140156.

It is an arithmetic number, because the mean of its divisors is an integer number (612349920).

Almost surely, 2^9427945761 is an apocalyptic number.

It is an amenable number.

9427945761 is a deficient number, since it is larger than the sum of its proper divisors (5268452319).

9427945761 is a wasteful number, since it uses less digits than its factorization.

9427945761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168725 (or 168722 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 9427945761 is about 97097.6094504906. The cubic root of 9427945761 is about 2112.5436526862.

The spelling of 9427945761 in words is "nine billion, four hundred twenty-seven million, nine hundred forty-five thousand, seven hundred sixty-one".