2113666719 has 8 divisors (see below), whose sum is σ = 2940753792. Its totient is φ = 1347845400.

The previous prime is 2113666717. The next prime is 2113666739. The reversal of 2113666719 is 9176663112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2113666719 - 2¹ = 2113666717 is a prime.

It is a super-2 number, since 2×2113666719² = 8935173998016449922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113666717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15316357 + ... + 15316494.

It is an arithmetic number, because the mean of its divisors is an integer number (367594224).

Almost surely, 2^2113666719 is an apocalyptic number.

2113666719 is a deficient number, since it is larger than the sum of its proper divisors (827087073).

2113666719 is a wasteful number, since it uses less digits than its factorization.

2113666719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30632877.

The product of its digits is 81648, while the sum is 42.

The square root of 2113666719 is about 45974.6312546387. The cubic root of 2113666719 is about 1283.3511469426.

The spelling of 2113666719 in words is "two billion, one hundred thirteen million, six hundred sixty-six thousand, seven hundred nineteen".