8148969897 has 16 divisors (see below), whose sum is σ = 11551621248. Its totient is φ = 5098396160.

The previous prime is 8148969893. The next prime is 8148969911. The reversal of 8148969897 is 7989698418.

It is a cyclic number.

It is not a de Polignac number, because 8148969897 - 2² = 8148969893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is not an unprimeable number, because it can be changed into a prime (8148969893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1110504 + ... + 1117817.

It is an arithmetic number, because the mean of its divisors is an integer number (721976328).

Almost surely, 2^8148969897 is an apocalyptic number.

It is an amenable number.

8148969897 is a deficient number, since it is larger than the sum of its proper divisors (3402651351).

8148969897 is a wasteful number, since it uses less digits than its factorization.

8148969897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228400.

The product of its digits is 62705664, while the sum is 69.

The square root of 8148969897 is about 90271.6450331997. The cubic root of 8148969897 is about 2012.3378898111.

The spelling of 8148969897 in words is "eight billion, one hundred forty-eight million, nine hundred sixty-nine thousand, eight hundred ninety-seven".