1892081956121 has 8 divisors (see below), whose sum is σ = 2162917182144. Its totient is φ = 1621381181040.

The previous prime is 1892081956109. The next prime is 1892081956139. The reversal of 1892081956121 is 1216591802981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1892081956121 - 2¹⁸ = 1892081693977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1892081946121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33582575 + ... + 33638868.

It is an arithmetic number, because the mean of its divisors is an integer number (270364647768).

Almost surely, 2^{1892081956121} is an apocalyptic number.

It is an amenable number.

1892081956121 is a deficient number, since it is larger than the sum of its proper divisors (270835226023).

1892081956121 is an equidigital number, since it uses as much as digits as its factorization.

1892081956121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67225471.

The product of its (nonzero) digits is 622080, while the sum is 53.

The spelling of 1892081956121 in words is "one trillion, eight hundred ninety-two billion, eighty-one million, nine hundred fifty-six thousand, one hundred twenty-one".