2115818698 has 16 divisors (see below), whose sum is σ = 3711470400. Its totient is φ = 885691296.

The previous prime is 2115818689. The next prime is 2115818699. The reversal of 2115818698 is 8968185112.

It is not an unprimeable number, because it can be changed into a prime (2115818699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1756723 + ... + 1757926.

It is an arithmetic number, because the mean of its divisors is an integer number (231966900).

Almost surely, 2^2115818698 is an apocalyptic number.

2115818698 is a deficient number, since it is larger than the sum of its proper divisors (1595651702).

2115818698 is a wasteful number, since it uses less digits than its factorization.

2115818698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3514701.

The product of its digits is 276480, while the sum is 49.

The square root of 2115818698 is about 45998.0292838726. The cubic root of 2115818698 is about 1283.7865369302.

The spelling of 2115818698 in words is "two billion, one hundred fifteen million, eight hundred eighteen thousand, six hundred ninety-eight".