981853089580 has 48 divisors (see below), whose sum is σ = 2251155172896. Its totient is φ = 356748756480.

The previous prime is 981853089557. The next prime is 981853089611. The reversal of 981853089580 is 85980358189.

It is a happy number.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1531809 + ... + 2076088.

It is an arithmetic number, because the mean of its divisors is an integer number (46899066102).

Almost surely, 2^981853089580 is an apocalyptic number.

It is an amenable number.

981853089580 is an abundant number, since it is smaller than the sum of its proper divisors (1269302083316).

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

981853089580 is a wasteful number, since it uses less digits than its factorization.

981853089580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3609154 (or 3609152 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 64.

The spelling of 981853089580 in words is "nine hundred eighty-one billion, eight hundred fifty-three million, eighty-nine thousand, five hundred eighty".