1853890944648 has 32 divisors (see below), whose sum is σ = 4733338584960. Its totient is φ = 604815485120.

The previous prime is 1853890944623. The next prime is 1853890944701. The reversal of 1853890944648 is 8464490983581.

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, 821759043 + ... + 821761298.

It is an arithmetic number, because the mean of its divisors is an integer number (147916830780).

Almost surely, 2^{1853890944648} is an apocalyptic number.

It is an amenable number.

1853890944648 is an abundant number, since it is smaller than the sum of its proper divisors (2879447640312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1853890944648 is a wasteful number, since it uses less digits than its factorization.

1853890944648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643520397 (or 1643520393 counting only the distinct ones).

The product of its (nonzero) digits is 238878720, while the sum is 69.

The spelling of 1853890944648 in words is "one trillion, eight hundred fifty-three billion, eight hundred ninety million, nine hundred forty-four thousand, six hundred forty-eight".