1849055990725 has 6 divisors (see below), whose sum is σ = 2292829428530. Its totient is φ = 1479244792560.

The previous prime is 1849055990699. The next prime is 1849055990729. The reversal of 1849055990725 is 5270995509481.

It can be written as a sum of positive squares in 3 ways, for example, as 250687471969 + 1598368518756 = 500687^2 + 1264266^2 .

It is not a de Polignac number, because 1849055990725 - 2¹⁷ = 1849055859653 is a prime.

It is a super-2 number, since 2×1849055990725² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1849055990729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36981119790 + ... + 36981119839.

Almost surely, 2^{1849055990725} is an apocalyptic number.

It is an amenable number.

1849055990725 is a deficient number, since it is larger than the sum of its proper divisors (443773437805).

1849055990725 is an equidigital number, since it uses as much as digits as its factorization.

1849055990725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73962239639 (or 73962239634 counting only the distinct ones).

The product of its (nonzero) digits is 40824000, while the sum is 64.

The spelling of 1849055990725 in words is "one trillion, eight hundred forty-nine billion, fifty-five million, nine hundred ninety thousand, seven hundred twenty-five".