2119818658397 has 16 divisors (see below), whose sum is σ = 2338621165440. Its totient is φ = 1905366777600.

The previous prime is 2119818658379. The next prime is 2119818658411. The reversal of 2119818658397 is 7938568189112.

It is not a de Polignac number, because 2119818658397 - 2²² = 2119814464093 is a prime.

It is a super-2 number, since 2×2119818658397² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2119818658357) 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, 30816872 + ... + 30885582.

It is an arithmetic number, because the mean of its divisors is an integer number (146163822840).

Almost surely, 2^{2119818658397} is an apocalyptic number.

It is an amenable number.

2119818658397 is a deficient number, since it is larger than the sum of its proper divisors (218802507043).

2119818658397 is a wasteful number, since it uses less digits than its factorization.

2119818658397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100324.

The product of its digits is 52254720, while the sum is 68.

The spelling of 2119818658397 in words is "two trillion, one hundred nineteen billion, eight hundred eighteen million, six hundred fifty-eight thousand, three hundred ninety-seven".