31438508069425 has 24 divisors (see below), whose sum is σ = 39092478671232. Its totient is φ = 25080713544000.

The previous prime is 31438508069387. The next prime is 31438508069483. The reversal of 31438508069425 is 52496080583413.

It is not a de Polignac number, because 31438508069425 - 2¹⁷ = 31438507938353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31438508069425.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22387882 + ... + 23750668.

It is an arithmetic number, because the mean of its divisors is an integer number (1628853277968).

Almost surely, 2^{31438508069425} is an apocalyptic number.

It is an amenable number.

31438508069425 is a deficient number, since it is larger than the sum of its proper divisors (7653970601807).

31438508069425 is a wasteful number, since it uses less digits than its factorization.

31438508069425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365369 (or 1365364 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 58.

The spelling of 31438508069425 in words is "thirty-one trillion, four hundred thirty-eight billion, five hundred eight million, sixty-nine thousand, four hundred twenty-five".