31438050653752 has 128 divisors (see below), whose sum is σ = 62433665648640. Its totient is φ = 14821485235200.

The previous prime is 31438050653749. The next prime is 31438050653753. The reversal of 31438050653752 is 25735605083413.

It is a self number, because there is not a number n which added to its sum of digits gives 31438050653752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31438050653753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1647082753 + ... + 1647101839.

It is an arithmetic number, because the mean of its divisors is an integer number (487763012880).

Almost surely, 2^{31438050653752} is an apocalyptic number.

It is an amenable number.

31438050653752 is a deficient number, since it is larger than the sum of its proper divisors (30995614994888).

31438050653752 is a wasteful number, since it uses less digits than its factorization.

31438050653752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20181 (or 20177 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 52.

The spelling of 31438050653752 in words is "thirty-one trillion, four hundred thirty-eight billion, fifty million, six hundred fifty-three thousand, seven hundred fifty-two".