1872426111269 has 12 divisors (see below), whose sum is σ = 2248390539648. Its totient is φ = 1553164515000.

The previous prime is 1872426111217. The next prime is 1872426111271. The reversal of 1872426111269 is 9621116242781.

It is a de Polignac number, because none of the positive numbers 2^k-1872426111269 is a prime.

It is a super-2 number, since 2×1872426111269² (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 (1872426111209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 616333607 + ... + 616336644.

It is an arithmetic number, because the mean of its divisors is an integer number (187365878304).

Almost surely, 2^{1872426111269} is an apocalyptic number.

It is an amenable number.

1872426111269 is a deficient number, since it is larger than the sum of its proper divisors (375964428379).

1872426111269 is a wasteful number, since it uses less digits than its factorization.

1872426111269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232670296 (or 1232670289 counting only the distinct ones).

The product of its digits is 580608, while the sum is 50.

The spelling of 1872426111269 in words is "one trillion, eight hundred seventy-two billion, four hundred twenty-six million, one hundred eleven thousand, two hundred sixty-nine".