31440144414 has 16 divisors (see below), whose sum is σ = 71863187328. Its totient is φ = 8982898392.

The previous prime is 31440144397. The next prime is 31440144433. The reversal of 31440144414 is 41444104413.

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, 374287392 + ... + 374287475.

It is an arithmetic number, because the mean of its divisors is an integer number (4491449208).

Almost surely, 2^31440144414 is an apocalyptic number.

31440144414 is an abundant number, since it is smaller than the sum of its proper divisors (40423042914).

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

31440144414 is a wasteful number, since it uses less digits than its factorization.

31440144414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748574879.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 31440144414 its reverse (41444104413), we get a palindrome (72884248827).

The spelling of 31440144414 in words is "thirty-one billion, four hundred forty million, one hundred forty-four thousand, four hundred fourteen".