2100440372369 has 4 divisors (see below), whose sum is σ = 2100558213744. Its totient is φ = 2100322530996.

The previous prime is 2100440372341. The next prime is 2100440372389. The reversal of 2100440372369 is 9632730440012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100440372369 is a prime.

It is a super-2 number, since 2×2100440372369² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100440372389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58893947 + ... + 58929600.

It is an arithmetic number, because the mean of its divisors is an integer number (525139553436).

Almost surely, 2^{2100440372369} is an apocalyptic number.

It is an amenable number.

2100440372369 is a deficient number, since it is larger than the sum of its proper divisors (117841375).

2100440372369 is a wasteful number, since it uses less digits than its factorization.

2100440372369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117841374.

The product of its (nonzero) digits is 217728, while the sum is 41.

The spelling of 2100440372369 in words is "two trillion, one hundred billion, four hundred forty million, three hundred seventy-two thousand, three hundred sixty-nine".