31544701478142 has 64 divisors (see below), whose sum is σ = 68087824992000. Its totient is φ = 9710705910528.

The previous prime is 31544701478089. The next prime is 31544701478153. The reversal of 31544701478142 is 24187410744513.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3826167 + ... + 8816402.

It is an arithmetic number, because the mean of its divisors is an integer number (1063872265500).

Almost surely, 2^{31544701478142} is an apocalyptic number.

31544701478142 is an abundant number, since it is smaller than the sum of its proper divisors (36543123513858).

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

31544701478142 is a wasteful number, since it uses less digits than its factorization.

31544701478142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12643145.

The product of its (nonzero) digits is 3010560, while the sum is 51.

The spelling of 31544701478142 in words is "thirty-one trillion, five hundred forty-four billion, seven hundred one million, four hundred seventy-eight thousand, one hundred forty-two".