31438883414 has 4 divisors (see below), whose sum is σ = 47158325124. Its totient is φ = 15719441706.

The previous prime is 31438883381. The next prime is 31438883423. The reversal of 31438883414 is 41438883413.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7859720852 + ... + 7859720855.

It is an arithmetic number, because the mean of its divisors is an integer number (11789581281).

Almost surely, 2^31438883414 is an apocalyptic number.

31438883414 is a deficient number, since it is larger than the sum of its proper divisors (15719441710).

31438883414 is a wasteful number, since it uses less digits than its factorization.

31438883414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15719441709.

The product of its digits is 884736, while the sum is 47.

Subtracting 31438883414 from its reverse (41438883413), we obtain a palindrome (9999999999).

The spelling of 31438883414 in words is "thirty-one billion, four hundred thirty-eight million, eight hundred eighty-three thousand, four hundred fourteen".