2113191468 has 18 divisors (see below), whose sum is σ = 5341678524. Its totient is φ = 704397144.

The previous prime is 2113191449. The next prime is 2113191473. The reversal of 2113191468 is 8641913112.

2113191468 is a `hidden beast` number, since 2 + 1 + 1 + 3 + 191 + 468 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 58699763 = 2113191468 / (2 + 1 + 1 + 3 + 1 + 9 + 1 + 4 + 6 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29349846 + ... + 29349917.

It is an arithmetic number, because the mean of its divisors is an integer number (296759918).

Almost surely, 2^2113191468 is an apocalyptic number.

It is an amenable number.

2113191468 is an abundant number, since it is smaller than the sum of its proper divisors (3228487056).

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

2113191468 is a wasteful number, since it uses less digits than its factorization.

2113191468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58699773 (or 58699768 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 2113191468 is about 45969.4623418634. The cubic root of 2113191468 is about 1283.2549539732.

The spelling of 2113191468 in words is "two billion, one hundred thirteen million, one hundred ninety-one thousand, four hundred sixty-eight".