981465691344 has 80 divisors (see below), whose sum is σ = 2589766172928. Its totient is φ = 320149060096.

The previous prime is 981465691229. The next prime is 981465691369. The reversal of 981465691344 is 443196564189.

981465691344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 18285154 + ... + 18338750.

Almost surely, 2^981465691344 is an apocalyptic number.

981465691344 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

It is an amenable number.

981465691344 is an abundant number, since it is smaller than the sum of its proper divisors (1608300481584).

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

981465691344 is a wasteful number, since it uses less digits than its factorization.

981465691344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61772 (or 61766 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 60.

The spelling of 981465691344 in words is "nine hundred eighty-one billion, four hundred sixty-five million, six hundred ninety-one thousand, three hundred forty-four".