31678288248072 has 64 divisors (see below), whose sum is σ = 79953916078080. Its totient is φ = 10458617121792.

The previous prime is 31678288248071. The next prime is 31678288248091. The reversal of 31678288248072 is 27084288287613.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 31678288247994 and 31678288248012.

It is not an unprimeable number, because it can be changed into a prime (31678288248071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6955723 + ... + 10570650.

It is an arithmetic number, because the mean of its divisors is an integer number (1249279938720).

Almost surely, 2^{31678288248072} is an apocalyptic number.

It is an amenable number.

31678288248072 is an abundant number, since it is smaller than the sum of its proper divisors (48275627830008).

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

31678288248072 is a wasteful number, since it uses less digits than its factorization.

31678288248072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17527102 (or 17527098 counting only the distinct ones).

The product of its (nonzero) digits is 115605504, while the sum is 66.

The spelling of 31678288248072 in words is "thirty-one trillion, six hundred seventy-eight billion, two hundred eighty-eight million, two hundred forty-eight thousand, seventy-two".