1890981343774 has 16 divisors (see below), whose sum is σ = 2874293280000. Its totient is φ = 932899555224.

The previous prime is 1890981343751. The next prime is 1890981343789. The reversal of 1890981343774 is 4773431890981.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3755232 + ... + 4228915.

It is an arithmetic number, because the mean of its divisors is an integer number (179643330000).

Almost surely, 2^{1890981343774} is an apocalyptic number.

1890981343774 is a deficient number, since it is larger than the sum of its proper divisors (983311936226).

1890981343774 is a wasteful number, since it uses less digits than its factorization.

1890981343774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7985727.

The product of its (nonzero) digits is 36578304, while the sum is 64.

The spelling of 1890981343774 in words is "one trillion, eight hundred ninety billion, nine hundred eighty-one million, three hundred forty-three thousand, seven hundred seventy-four".