9971746375 has 8 divisors (see below), whose sum is σ = 12444739632. Its totient is φ = 7977397000.

The previous prime is 9971746363. The next prime is 9971746391. The reversal of 9971746375 is 5736471799.

It is not a de Polignac number, because 9971746375 - 2¹⁹ = 9971222087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39886861 + ... + 39887110.

It is an arithmetic number, because the mean of its divisors is an integer number (1555592454).

Almost surely, 2^9971746375 is an apocalyptic number.

9971746375 is a deficient number, since it is larger than the sum of its proper divisors (2472993257).

9971746375 is an equidigital number, since it uses as much as digits as its factorization.

9971746375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79773986 (or 79773976 counting only the distinct ones).

The product of its digits is 10001880, while the sum is 58.

The square root of 9971746375 is about 99858.6319503727. The cubic root of 9971746375 is about 2152.4037564608.

The spelling of 9971746375 in words is "nine billion, nine hundred seventy-one million, seven hundred forty-six thousand, three hundred seventy-five".