1849570080121 has 9 divisors (see below), whose sum is σ = 1853567539149. Its totient is φ = 1845581232384.

The previous prime is 1849570080109. The next prime is 1849570080131. The reversal of 1849570080121 is 1210800759481.

The square root of 1849570080121 is 1359989.

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

It can be written as a sum of positive squares in 4 ways, for example, as 226137340521 + 1623432739600 = 475539^2 + 1274140^2 .

It is not a de Polignac number, because 1849570080121 - 2⁵ = 1849570080089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1849570080131) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 784712475 + ... + 784714831.

Almost surely, 2^{1849570080121} is an apocalyptic number.

1849570080121 is the 1359989-th square number.

1849570080121 is the 679995-th centered octagonal number.

It is an amenable number.

1849570080121 is a deficient number, since it is larger than the sum of its proper divisors (3997459028).

1849570080121 is an frugal number, since it uses more digits than its factorization.

1849570080121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5868 (or 2934 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 46.

The spelling of 1849570080121 in words is "one trillion, eight hundred forty-nine billion, five hundred seventy million, eighty thousand, one hundred twenty-one".