31967785480 has 16 divisors (see below), whose sum is σ = 71927517420. Its totient is φ = 12787114176.

The previous prime is 31967785463. The next prime is 31967785483. The reversal of 31967785480 is 8458776913.

It can be written as a sum of positive squares in 2 ways, for example, as 29874356964 + 2093428516 = 172842^2 + 45754^2 .

It is not an unprimeable number, because it can be changed into a prime (31967785483) 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 3 ways as a sum of consecutive naturals, for example, 399597279 + ... + 399597358.

Almost surely, 2^31967785480 is an apocalyptic number.

It is an amenable number.

31967785480 is an abundant number, since it is smaller than the sum of its proper divisors (39959731940).

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

31967785480 is a wasteful number, since it uses less digits than its factorization.

31967785480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799194648 (or 799194644 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 58.

The spelling of 31967785480 in words is "thirty-one billion, nine hundred sixty-seven million, seven hundred eighty-five thousand, four hundred eighty".