2191396200913 has 16 divisors (see below), whose sum is σ = 2277383819776. Its totient is φ = 2106906500160.

The previous prime is 2191396200887. The next prime is 2191396200923. The reversal of 2191396200913 is 3190026931912.

It is a cyclic number.

It is not a de Polignac number, because 2191396200913 - 2¹³ = 2191396192721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2191396200923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1143523 + ... + 2385463.

It is an arithmetic number, because the mean of its divisors is an integer number (142336488736).

Almost surely, 2^{2191396200913} is an apocalyptic number.

It is an amenable number.

2191396200913 is a deficient number, since it is larger than the sum of its proper divisors (85987618863).

2191396200913 is a wasteful number, since it uses less digits than its factorization.

2191396200913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242544.

The product of its (nonzero) digits is 157464, while the sum is 46.

The spelling of 2191396200913 in words is "two trillion, one hundred ninety-one billion, three hundred ninety-six million, two hundred thousand, nine hundred thirteen".