9799151897 has 4 divisors (see below), whose sum is σ = 9830660736. Its totient is φ = 9767643060.

The previous prime is 9799151837. The next prime is 9799151911. The reversal of 9799151897 is 7981519979.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9799151897 - 2⁸ = 9799151641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9799151807) 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, 15753953 + ... + 15754574.

It is an arithmetic number, because the mean of its divisors is an integer number (2457665184).

Almost surely, 2^9799151897 is an apocalyptic number.

It is an amenable number.

9799151897 is a deficient number, since it is larger than the sum of its proper divisors (31508839).

9799151897 is a wasteful number, since it uses less digits than its factorization.

9799151897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31508838.

The product of its digits is 12859560, while the sum is 65.

The square root of 9799151897 is about 98990.6657064190. The cubic root of 9799151897 is about 2139.9132274042.

The spelling of 9799151897 in words is "nine billion, seven hundred ninety-nine million, one hundred fifty-one thousand, eight hundred ninety-seven".