7981699233 has 16 divisors (see below), whose sum is σ = 10776386880. Its totient is φ = 5254142784.

The previous prime is 7981699181. The next prime is 7981699241. The reversal of 7981699233 is 3329961897.

It is not a de Polignac number, because 7981699233 - 2⁹ = 7981698721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7981699273) 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, 507435 + ... + 522927.

It is an arithmetic number, because the mean of its divisors is an integer number (673524180).

Almost surely, 2^7981699233 is an apocalyptic number.

It is an amenable number.

7981699233 is a deficient number, since it is larger than the sum of its proper divisors (2794687647).

7981699233 is a wasteful number, since it uses less digits than its factorization.

7981699233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17648.

The product of its digits is 4408992, while the sum is 57.

The square root of 7981699233 is about 89340.3561275642. The cubic root of 7981699233 is about 1998.4737716932.

The spelling of 7981699233 in words is "seven billion, nine hundred eighty-one million, six hundred ninety-nine thousand, two hundred thirty-three".