981338831453 has 4 divisors (see below), whose sum is σ = 981440734848. Its totient is φ = 981236928060.

The previous prime is 981338831419. The next prime is 981338831483. The reversal of 981338831453 is 354138833189.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 981338831453 - 2²⁶ = 981271722589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981338831483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50937251 + ... + 50956512.

It is an arithmetic number, because the mean of its divisors is an integer number (245360183712).

Almost surely, 2^981338831453 is an apocalyptic number.

It is an amenable number.

981338831453 is a deficient number, since it is larger than the sum of its proper divisors (101903395).

981338831453 is a wasteful number, since it uses less digits than its factorization.

981338831453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101903394.

The product of its digits is 7464960, while the sum is 56.

The spelling of 981338831453 in words is "nine hundred eighty-one billion, three hundred thirty-eight million, eight hundred thirty-one thousand, four hundred fifty-three".