31481746330 has 32 divisors (see below), whose sum is σ = 57896861184. Its totient is φ = 12319650816.

The previous prime is 31481746319. The next prime is 31481746381. The reversal of 31481746330 is 3364718413.

It is a super-2 number, since 2×31481746330² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1239034 + ... + 1264186.

It is an arithmetic number, because the mean of its divisors is an integer number (1809276912).

Almost surely, 2^31481746330 is an apocalyptic number.

31481746330 is a deficient number, since it is larger than the sum of its proper divisors (26415114854).

31481746330 is a wasteful number, since it uses less digits than its factorization.

31481746330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27870.

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 31481746330 in words is "thirty-one billion, four hundred eighty-one million, seven hundred forty-six thousand, three hundred thirty".