9979157151 has 20 divisors (see below), whose sum is σ = 14949408672. Its totient is φ = 6633906048.

The previous prime is 9979157119. The next prime is 9979157161. The reversal of 9979157151 is 1517519799.

It is not a de Polignac number, because 9979157151 - 2⁵ = 9979157119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9979157161) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 145911 + ... + 203096.

Almost surely, 2^9979157151 is an apocalyptic number.

9979157151 is a deficient number, since it is larger than the sum of its proper divisors (4970251521).

9979157151 is a wasteful number, since it uses less digits than its factorization.

9979157151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349372 (or 349363 counting only the distinct ones).

The product of its digits is 893025, while the sum is 54.

The square root of 9979157151 is about 99895.7313952904. The cubic root of 9979157151 is about 2152.9368303298.

The spelling of 9979157151 in words is "nine billion, nine hundred seventy-nine million, one hundred fifty-seven thousand, one hundred fifty-one".