31925849431056 has 160 divisors (see below), whose sum is σ = 96575667261696. Its totient is φ = 8897399808000.

The previous prime is 31925849431043. The next prime is 31925849431121. The reversal of 31925849431056 is 65013494852913.

It is a happy number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 68938516 + ... + 69400076.

Almost surely, 2^{31925849431056} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31925849431056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48287833630848).

31925849431056 is an abundant number, since it is smaller than the sum of its proper divisors (64649817830640).

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

31925849431056 is a wasteful number, since it uses less digits than its factorization.

31925849431056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466641 (or 466635 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 60.

The spelling of 31925849431056 in words is "thirty-one trillion, nine hundred twenty-five billion, eight hundred forty-nine million, four hundred thirty-one thousand, fifty-six".