1790027250561 has 27 divisors (see below), whose sum is σ = 2842087654497. Its totient is φ = 1084838241960.

The previous prime is 1790027250511. The next prime is 1790027250569. The reversal of 1790027250561 is 1650527200971.

The square root of 1790027250561 is 1337919.

It is a perfect power (a square), and thus also a powerful number.

1790027250561 is a `hidden beast` number, since 1 + 79 + 0 + 0 + 2 + 72 + 505 + 6 + 1 = 666.

It is not a de Polignac number, because 1790027250561 - 2⁷ = 1790027250433 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1790027250569) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 44131056 + ... + 44171598.

Almost surely, 2^{1790027250561} is an apocalyptic number.

1790027250561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1790027250561 is the 1337919-th square number.

1790027250561 is the 668960-th centered octagonal number.

It is an amenable number.

1790027250561 is a deficient number, since it is larger than the sum of its proper divisors (1052060403936).

1790027250561 is an frugal number, since it uses more digits than its factorization.

1790027250561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81114 (or 40557 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 45.

The spelling of 1790027250561 in words is "one trillion, seven hundred ninety billion, twenty-seven million, two hundred fifty thousand, five hundred sixty-one".