31463578356 has 36 divisors (see below), whose sum is σ = 85401142848. Its totient is φ = 8989593648.

The previous prime is 31463578343. The next prime is 31463578357. The reversal of 31463578356 is 65387536413.

It is a junction number, because it is equal to n+sod(n) for n = 31463578299 and 31463578308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31463578357) 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 11 ways as a sum of consecutive naturals, for example, 26754156 + ... + 26755331.

It is an arithmetic number, because the mean of its divisors is an integer number (2372253968).

Almost surely, 2^31463578356 is an apocalyptic number.

It is an amenable number.

31463578356 is an abundant number, since it is smaller than the sum of its proper divisors (53937564492).

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

31463578356 is a wasteful number, since it uses less digits than its factorization.

31463578356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53509508 (or 53509499 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 51.

The spelling of 31463578356 in words is "thirty-one billion, four hundred sixty-three million, five hundred seventy-eight thousand, three hundred fifty-six".