9979641395 has 8 divisors (see below), whose sum is σ = 12019761600. Its totient is φ = 7954251840.

The previous prime is 9979641383. The next prime is 9979641401. The reversal of 9979641395 is 5931469799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-9979641395 is a prime.

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, 3681170 + ... + 3683879.

It is an arithmetic number, because the mean of its divisors is an integer number (1502470200).

Almost surely, 2^9979641395 is an apocalyptic number.

9979641395 is a deficient number, since it is larger than the sum of its proper divisors (2040120205).

9979641395 is a wasteful number, since it uses less digits than its factorization.

9979641395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7365325.

The product of its digits is 16533720, while the sum is 62.

The square root of 9979641395 is about 99898.1551130951. The cubic root of 9979641395 is about 2152.9716539080.

The spelling of 9979641395 in words is "nine billion, nine hundred seventy-nine million, six hundred forty-one thousand, three hundred ninety-five".