9745983831 has 4 divisors (see below), whose sum is σ = 12994645112. Its totient is φ = 6497322552.

The previous prime is 9745983791. The next prime is 9745983833. The reversal of 9745983831 is 1383895479.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 9745983831 - 2¹⁷ = 9745852759 is a prime.

It is a super-2 number, since 2×9745983831² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9745983833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1624330636 + ... + 1624330641.

It is an arithmetic number, because the mean of its divisors is an integer number (3248661278).

Almost surely, 2^9745983831 is an apocalyptic number.

9745983831 is a deficient number, since it is larger than the sum of its proper divisors (3248661281).

9745983831 is a wasteful number, since it uses less digits than its factorization.

9745983831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248661280.

The product of its digits is 6531840, while the sum is 57.

The square root of 9745983831 is about 98721.7495337274. The cubic root of 9745983831 is about 2136.0359720285.

The spelling of 9745983831 in words is "nine billion, seven hundred forty-five million, nine hundred eighty-three thousand, eight hundred thirty-one".