1831972353273 has 20 divisors (see below), whose sum is σ = 2737222321680. Its totient is φ = 1221059512152.

The previous prime is 1831972353227. The next prime is 1831972353283. The reversal of 1831972353273 is 3723532791381.

1831972353273 is a `hidden beast` number, since 1 + 8 + 3 + 19 + 7 + 2 + 353 + 273 = 666.

It is not a de Polignac number, because 1831972353273 - 2¹⁸ = 1831972091129 is a prime.

It is a super-2 number, since 2×1831972353273² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1831972353283) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1974583 + ... + 2750076.

It is an arithmetic number, because the mean of its divisors is an integer number (136861116084).

Almost surely, 2^{1831972353273} is an apocalyptic number.

It is an amenable number.

1831972353273 is a deficient number, since it is larger than the sum of its proper divisors (905249968407).

1831972353273 is an equidigital number, since it uses as much as digits as its factorization.

1831972353273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4729458 (or 4729449 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 54.

The spelling of 1831972353273 in words is "one trillion, eight hundred thirty-one billion, nine hundred seventy-two million, three hundred fifty-three thousand, two hundred seventy-three".