9979349151 has 4 divisors (see below), whose sum is σ = 13305798872. Its totient is φ = 6652899432.

The previous prime is 9979349099. The next prime is 9979349179. The reversal of 9979349151 is 1519439799.

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

It is not a de Polignac number, because 9979349151 - 2²⁷ = 9845131423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9979349091 and 9979349100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9979349251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663224856 + ... + 1663224861.

It is an arithmetic number, because the mean of its divisors is an integer number (3326449718).

Almost surely, 2^9979349151 is an apocalyptic number.

9979349151 is a deficient number, since it is larger than the sum of its proper divisors (3326449721).

9979349151 is a wasteful number, since it uses less digits than its factorization.

9979349151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326449720.

The product of its digits is 2755620, while the sum is 57.

The square root of 9979349151 is about 99896.6923926914. The cubic root of 9979349151 is about 2152.9506378158.

The spelling of 9979349151 in words is "nine billion, nine hundred seventy-nine million, three hundred forty-nine thousand, one hundred fifty-one".