31430046016 has 28 divisors (see below), whose sum is σ = 63391448020. Its totient is φ = 15457397760.

The previous prime is 31430046013. The next prime is 31430046047. The reversal of 31430046016 is 61064003413.

It can be written as a sum of positive squares in 2 ways, for example, as 1395769600 + 30034276416 = 37360^2 + 173304^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31430046013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4021461 + ... + 4029268.

Almost surely, 2^31430046016 is an apocalyptic number.

It is an amenable number.

31430046016 is an abundant number, since it is smaller than the sum of its proper divisors (31961402004).

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

31430046016 is an equidigital number, since it uses as much as digits as its factorization.

31430046016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8050802 (or 8050792 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 31430046016 its reverse (61064003413), we get a palindrome (92494049429).

The spelling of 31430046016 in words is "thirty-one billion, four hundred thirty million, forty-six thousand, sixteen".