981572971832 has 32 divisors (see below), whose sum is σ = 1858200549120. Its totient is φ = 486055546080.

The previous prime is 981572971823. The next prime is 981572971867. The reversal of 981572971832 is 238179275189.

981572971832 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×981572971832³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

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, 2748107 + ... + 3084677.

It is an arithmetic number, because the mean of its divisors is an integer number (58068767160).

Almost surely, 2^981572971832 is an apocalyptic number.

It is an amenable number.

981572971832 is a deficient number, since it is larger than the sum of its proper divisors (876627577288).

981572971832 is a wasteful number, since it uses less digits than its factorization.

981572971832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340091 (or 340087 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 62.

The spelling of 981572971832 in words is "nine hundred eighty-one billion, five hundred seventy-two million, nine hundred seventy-one thousand, eight hundred thirty-two".