981325569895 has 64 divisors (see below), whose sum is σ = 1444013568000. Its totient is φ = 631754726400.

The previous prime is 981325569893. The next prime is 981325569947. The reversal of 981325569895 is 598965523189.

It is a happy number.

It is not a de Polignac number, because 981325569895 - 2¹ = 981325569893 is a prime.

It is a super-2 number, since 2×981325569895² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981325569893) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 417171 + ... + 1461739.

It is an arithmetic number, because the mean of its divisors is an integer number (22562712000).

Almost surely, 2^981325569895 is an apocalyptic number.

981325569895 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

981325569895 is a deficient number, since it is larger than the sum of its proper divisors (462687998105).

981325569895 is a wasteful number, since it uses less digits than its factorization.

981325569895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044664.

The product of its digits is 209952000, while the sum is 70.

The spelling of 981325569895 in words is "nine hundred eighty-one billion, three hundred twenty-five million, five hundred sixty-nine thousand, eight hundred ninety-five".