31438508069424 has 160 divisors (see below), whose sum is σ = 82322282465280. Its totient is φ = 10337702630400.

The previous prime is 31438508069387. The next prime is 31438508069483. The reversal of 31438508069424 is 42496080583413.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1427001289 + ... + 1427023319.

It is an arithmetic number, because the mean of its divisors is an integer number (514514265408).

Almost surely, 2^{31438508069424} 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 31438508069424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41161141232640).

31438508069424 is an abundant number, since it is smaller than the sum of its proper divisors (50883774395856).

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

31438508069424 is a wasteful number, since it uses less digits than its factorization.

31438508069424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23339 (or 23333 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 57.

The spelling of 31438508069424 in words is "thirty-one trillion, four hundred thirty-eight billion, five hundred eight million, sixty-nine thousand, four hundred twenty-four".