31576748064 has 48 divisors (see below), whose sum is σ = 82903655520. Its totient is φ = 10523717120.

The previous prime is 31576748057. The next prime is 31576748069. The reversal of 31576748064 is 46084767513.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 31576747998 and 31576748016.

It is not an unprimeable number, because it can be changed into a prime (31576748069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581599 + ... + 633569.

It is an arithmetic number, because the mean of its divisors is an integer number (1727159490).

Almost surely, 2^31576748064 is an apocalyptic number.

It is an amenable number.

31576748064 is an abundant number, since it is smaller than the sum of its proper divisors (51326907456).

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

31576748064 is a wasteful number, since it uses less digits than its factorization.

31576748064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58313 (or 58305 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 31576748064 in words is "thirty-one billion, five hundred seventy-six million, seven hundred forty-eight thousand, sixty-four".