2113253378787 has 8 divisors (see below), whose sum is σ = 2817678136320. Its totient is φ = 1408832103560.

The previous prime is 2113253378767. The next prime is 2113253378813. The reversal of 2113253378787 is 7878733523112.

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

It is a cyclic number.

It is not a de Polignac number, because 2113253378787 - 2⁷ = 2113253378659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2113253378707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1367014 + ... + 2468852.

It is an arithmetic number, because the mean of its divisors is an integer number (352209767040).

Almost surely, 2^{2113253378787} is an apocalyptic number.

2113253378787 is a deficient number, since it is larger than the sum of its proper divisors (704424757533).

2113253378787 is a wasteful number, since it uses less digits than its factorization.

2113253378787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741153.

The product of its digits is 11854080, while the sum is 57.

The spelling of 2113253378787 in words is "two trillion, one hundred thirteen billion, two hundred fifty-three million, three hundred seventy-eight thousand, seven hundred eighty-seven".