31249468416 has 88 divisors (see below), whose sum is σ = 87675138880. Its totient is φ = 9868234752.

The previous prime is 31249468373. The next prime is 31249468417. The reversal of 31249468416 is 61486494213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (31249468417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209326 + ... + 326061.

Almost surely, 2^31249468416 is an apocalyptic number.

It is an amenable number.

31249468416 is an abundant number, since it is smaller than the sum of its proper divisors (56425670464).

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

31249468416 is a wasteful number, since it uses less digits than its factorization.

31249468416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535429 (or 535411 counting only the distinct ones).

The product of its digits is 995328, while the sum is 48.

The spelling of 31249468416 in words is "thirty-one billion, two hundred forty-nine million, four hundred sixty-eight thousand, four hundred sixteen".