1872270373745 has 4 divisors (see below), whose sum is σ = 2246724448500. Its totient is φ = 1497816298992.

The previous prime is 1872270373739. The next prime is 1872270373763. The reversal of 1872270373745 is 5473730722781.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 272986395361 + 1599283978384 = 522481^2 + 1264628^2 .

It is a cyclic number.

It is not a de Polignac number, because 1872270373745 - 2²⁴ = 1872253596529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187227037370 + ... + 187227037379.

It is an arithmetic number, because the mean of its divisors is an integer number (561681112125).

Almost surely, 2^{1872270373745} is an apocalyptic number.

It is an amenable number.

1872270373745 is a deficient number, since it is larger than the sum of its proper divisors (374454074755).

1872270373745 is an equidigital number, since it uses as much as digits as its factorization.

1872270373745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374454074754.

The product of its (nonzero) digits is 13829760, while the sum is 56.

The spelling of 1872270373745 in words is "one trillion, eight hundred seventy-two billion, two hundred seventy million, three hundred seventy-three thousand, seven hundred forty-five".