981947253333 has 16 divisors (see below), whose sum is σ = 1324875960000. Its totient is φ = 646851004800.

The previous prime is 981947253283. The next prime is 981947253341. The reversal of 981947253333 is 333352749189.

It is not a de Polignac number, because 981947253333 - 2¹⁶ = 981947187797 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981947253373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3096048 + ... + 3398441.

It is an arithmetic number, because the mean of its divisors is an integer number (82804747500).

Almost surely, 2^981947253333 is an apocalyptic number.

It is an amenable number.

981947253333 is a deficient number, since it is larger than the sum of its proper divisors (342928706667).

981947253333 is a wasteful number, since it uses less digits than its factorization.

981947253333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6495092.

The product of its digits is 14696640, while the sum is 57.

The spelling of 981947253333 in words is "nine hundred eighty-one billion, nine hundred forty-seven million, two hundred fifty-three thousand, three hundred thirty-three".