981495825772 has 48 divisors (see below), whose sum is σ = 2152206604800. Its totient is φ = 380479334400.

The previous prime is 981495825757. The next prime is 981495825773. The reversal of 981495825772 is 277528594189.

981495825772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 981495825698 and 981495825707.

It is not an unprimeable number, because it can be changed into a prime (981495825773) 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, 7945429 + ... + 8068012.

It is an arithmetic number, because the mean of its divisors is an integer number (44837637600).

Almost surely, 2^981495825772 is an apocalyptic number.

It is an amenable number.

981495825772 is an abundant number, since it is smaller than the sum of its proper divisors (1170710779028).

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

981495825772 is a wasteful number, since it uses less digits than its factorization.

981495825772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16013662 (or 16013660 counting only the distinct ones).

The product of its digits is 101606400, while the sum is 67.

The spelling of 981495825772 in words is "nine hundred eighty-one billion, four hundred ninety-five million, eight hundred twenty-five thousand, seven hundred seventy-two".