31454532623663 has 4 divisors (see below), whose sum is σ = 31454579790120. Its totient is φ = 31454485457208.

The previous prime is 31454532623659. The next prime is 31454532623677. The reversal of 31454532623663 is 36632623545413.

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 31454532623663 - 2² = 31454532623659 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 (31454532623363) 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, 22568345 + ... + 23921522.

It is an arithmetic number, because the mean of its divisors is an integer number (7863644947530).

Almost surely, 2^{31454532623663} is an apocalyptic number.

31454532623663 is a deficient number, since it is larger than the sum of its proper divisors (47166457).

31454532623663 is an equidigital number, since it uses as much as digits as its factorization.

31454532623663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47166456.

The product of its digits is 27993600, while the sum is 53.

The spelling of 31454532623663 in words is "thirty-one trillion, four hundred fifty-four billion, five hundred thirty-two million, six hundred twenty-three thousand, six hundred sixty-three".