2113687830 has 64 divisors (see below), whose sum is σ = 5119665408. Its totient is φ = 558472320.

The previous prime is 2113687799. The next prime is 2113687831. The reversal of 2113687830 is 387863112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113687831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2791812 + ... + 2792568.

It is an arithmetic number, because the mean of its divisors is an integer number (79994772).

Almost surely, 2^2113687830 is an apocalyptic number.

2113687830 is an abundant number, since it is smaller than the sum of its proper divisors (3005977578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2113687830 is a wasteful number, since it uses less digits than its factorization.

2113687830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 2113687830 is about 45974.8608480765. The cubic root of 2113687830 is about 1283.3554195708.

The spelling of 2113687830 in words is "two billion, one hundred thirteen million, six hundred eighty-seven thousand, eight hundred thirty".