31812466421814 has 16 divisors (see below), whose sum is σ = 68519158447152. Its totient is φ = 9788451206688.

The previous prime is 31812466421773. The next prime is 31812466421821. The reversal of 31812466421814 is 41812466421813.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203926066729 + ... + 203926066884.

It is an arithmetic number, because the mean of its divisors is an integer number (4282447402947).

Almost surely, 2^{31812466421814} is an apocalyptic number.

31812466421814 is an abundant number, since it is smaller than the sum of its proper divisors (36706692025338).

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

31812466421814 is a wasteful number, since it uses less digits than its factorization.

31812466421814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407852133631.

The product of its digits is 1769472, while the sum is 51.

Subtracting 31812466421814 from its reverse (41812466421813), we obtain a palindrome (9999999999999).

The spelling of 31812466421814 in words is "thirty-one trillion, eight hundred twelve billion, four hundred sixty-six million, four hundred twenty-one thousand, eight hundred fourteen".