31454743663 has 16 divisors (see below), whose sum is σ = 38068107840. Its totient is φ = 25371772416.

The previous prime is 31454743651. The next prime is 31454743679. The reversal of 31454743663 is 36634745413.

It is a cyclic number.

It is not a de Polignac number, because 31454743663 - 2¹⁷ = 31454612591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31454743643) 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, 1187973 + ... + 1214161.

It is an arithmetic number, because the mean of its divisors is an integer number (2379256740).

Almost surely, 2^31454743663 is an apocalyptic number.

31454743663 is a deficient number, since it is larger than the sum of its proper divisors (6613364177).

31454743663 is a wasteful number, since it uses less digits than its factorization.

31454743663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36306.

The product of its digits is 2177280, while the sum is 46.

The spelling of 31454743663 in words is "thirty-one billion, four hundred fifty-four million, seven hundred forty-three thousand, six hundred sixty-three".