31073532648 has 32 divisors (see below), whose sum is σ = 77722929600. Its totient is φ = 10352631168.

The previous prime is 31073532647. The next prime is 31073532661. The reversal of 31073532648 is 84623537013.

It is not an unprimeable number, because it can be changed into a prime (31073532641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276988 + ... + 372651.

It is an arithmetic number, because the mean of its divisors is an integer number (2428841550).

Almost surely, 2^31073532648 is an apocalyptic number.

It is an amenable number.

31073532648 is an abundant number, since it is smaller than the sum of its proper divisors (46649396952).

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

31073532648 is a wasteful number, since it uses less digits than its factorization.

31073532648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651641 (or 651637 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 31073532648 in words is "thirty-one billion, seventy-three million, five hundred thirty-two thousand, six hundred forty-eight".