1852109306749 has 8 divisors (see below), whose sum is σ = 1995625205280. Its totient is φ = 1708742829936.

The previous prime is 1852109306699. The next prime is 1852109306753. The reversal of 1852109306749 is 9476039012581.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1852109306749 is a prime.

It is a super-2 number, since 2×1852109306749² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1852109306749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1852109306449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37329679 + ... + 37379260.

It is an arithmetic number, because the mean of its divisors is an integer number (249453150660).

It is a 1-persistent number, because it is pandigital, but 2⋅1852109306749 = 3704218613498 is not.

Almost surely, 2^{1852109306749} is an apocalyptic number.

It is an amenable number.

1852109306749 is a deficient number, since it is larger than the sum of its proper divisors (143515898531).

1852109306749 is a wasteful number, since it uses less digits than its factorization.

1852109306749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74710859.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 1852109306749 in words is "one trillion, eight hundred fifty-two billion, one hundred nine million, three hundred six thousand, seven hundred forty-nine".