981215368896 has 56 divisors (see below), whose sum is σ = 2967008381440. Its totient is φ = 280347247872.

The previous prime is 981215368781. The next prime is 981215368957. The reversal of 981215368896 is 698863512189.

It is a tau number, because it is divible by the number of its divisors (56).

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, 365034136 + ... + 365036823.

Almost surely, 2^981215368896 is an apocalyptic number.

981215368896 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

981215368896 is an abundant number, since it is smaller than the sum of its proper divisors (1985793012544).

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

981215368896 is a wasteful number, since it uses less digits than its factorization.

981215368896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730070981 (or 730070971 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 66.

The spelling of 981215368896 in words is "nine hundred eighty-one billion, two hundred fifteen million, three hundred sixty-eight thousand, eight hundred ninety-six".