31639498212144 has 80 divisors (see below), whose sum is σ = 83451113648000. Its totient is φ = 10327191925248.

The previous prime is 31639498212109. The next prime is 31639498212163. The reversal of 31639498212144 is 44121289493613.

31639498212144 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×31639498212144³ (a number of 41 digits) contains 333 as substring.

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 in 15 ways as a sum of consecutive naturals, for example, 31993294 + ... + 32967405.

It is an arithmetic number, because the mean of its divisors is an integer number (1043138920600).

Almost surely, 2^{31639498212144} is an apocalyptic number.

It is an amenable number.

31639498212144 is an abundant number, since it is smaller than the sum of its proper divisors (51811615435856).

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

31639498212144 is a wasteful number, since it uses less digits than its factorization.

31639498212144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64960922 (or 64960916 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 57.

The spelling of 31639498212144 in words is "thirty-one trillion, six hundred thirty-nine billion, four hundred ninety-eight million, two hundred twelve thousand, one hundred forty-four".