31325728353 has 8 divisors (see below), whose sum is σ = 42296342400. Its totient is φ = 20619466608.

The previous prime is 31325728349. The next prime is 31325728363. The reversal of 31325728353 is 35382752313.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31325728353 - 2² = 31325728349 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31325728303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66087798 + ... + 66088271.

It is an arithmetic number, because the mean of its divisors is an integer number (5287042800).

Almost surely, 2^31325728353 is an apocalyptic number.

It is an amenable number.

31325728353 is a deficient number, since it is larger than the sum of its proper divisors (10970614047).

31325728353 is a wasteful number, since it uses less digits than its factorization.

31325728353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132176151.

The product of its digits is 453600, while the sum is 42.

The spelling of 31325728353 in words is "thirty-one billion, three hundred twenty-five million, seven hundred twenty-eight thousand, three hundred fifty-three".