31534367663 has 4 divisors (see below), whose sum is σ = 31645796808. Its totient is φ = 31422938520.

The previous prime is 31534367629. The next prime is 31534367699. The reversal of 31534367663 is 36676343513.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31534367663 - 2¹⁶ = 31534302127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31534369663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55714148 + ... + 55714713.

It is an arithmetic number, because the mean of its divisors is an integer number (7911449202).

Almost surely, 2^31534367663 is an apocalyptic number.

31534367663 is a deficient number, since it is larger than the sum of its proper divisors (111429145).

31534367663 is a wasteful number, since it uses less digits than its factorization.

31534367663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111429144.

The product of its digits is 2449440, while the sum is 47.

The spelling of 31534367663 in words is "thirty-one billion, five hundred thirty-four million, three hundred sixty-seven thousand, six hundred sixty-three".