2113578207 has 24 divisors (see below), whose sum is σ = 3296311200. Its totient is φ = 1297291968.

The previous prime is 2113578199. The next prime is 2113578253. The reversal of 2113578207 is 7028753112.

It is not a de Polignac number, because 2113578207 - 2³ = 2113578199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113578277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22294 + ... + 68732.

It is an arithmetic number, because the mean of its divisors is an integer number (137346300).

Almost surely, 2^2113578207 is an apocalyptic number.

2113578207 is a deficient number, since it is larger than the sum of its proper divisors (1182732993).

2113578207 is a wasteful number, since it uses less digits than its factorization.

2113578207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46847 (or 46844 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 2113578207 is about 45973.6686267259. The cubic root of 2113578207 is about 1283.3332328030. Note that the first 3 decimals are identical.

The spelling of 2113578207 in words is "two billion, one hundred thirteen million, five hundred seventy-eight thousand, two hundred seven".