1890136641086 has 4 divisors (see below), whose sum is σ = 2835204961632. Its totient is φ = 945068320542.

The previous prime is 1890136641079. The next prime is 1890136641157. The reversal of 1890136641086 is 6801466310981.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472534160270 + ... + 472534160273.

It is an arithmetic number, because the mean of its divisors is an integer number (708801240408).

Almost surely, 2^{1890136641086} is an apocalyptic number.

1890136641086 is a deficient number, since it is larger than the sum of its proper divisors (945068320546).

1890136641086 is an equidigital number, since it uses as much as digits as its factorization.

1890136641086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945068320545.

The product of its (nonzero) digits is 1492992, while the sum is 53.

The spelling of 1890136641086 in words is "one trillion, eight hundred ninety billion, one hundred thirty-six million, six hundred forty-one thousand, eighty-six".