31968349503 has 16 divisors (see below), whose sum is σ = 43567372800. Its totient is φ = 20841529856.

The previous prime is 31968349493. The next prime is 31968349507. The reversal of 31968349503 is 30594386913.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 31968349503 - 2⁴ = 31968349487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31968349507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78448 + ... + 264746.

It is an arithmetic number, because the mean of its divisors is an integer number (2722960800).

Almost surely, 2^31968349503 is an apocalyptic number.

31968349503 is a deficient number, since it is larger than the sum of its proper divisors (11599023297).

31968349503 is a wasteful number, since it uses less digits than its factorization.

31968349503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187566.

The product of its (nonzero) digits is 2099520, while the sum is 51.

The spelling of 31968349503 in words is "thirty-one billion, nine hundred sixty-eight million, three hundred forty-nine thousand, five hundred three".