31551843349142 has 8 divisors (see below), whose sum is σ = 47327791134432. Its totient is φ = 15775912971000.

The previous prime is 31551843349121. The next prime is 31551843349151. The reversal of 31551843349142 is 24194334815513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2082092 + ... + 8212112.

It is an arithmetic number, because the mean of its divisors is an integer number (5915973891804).

Almost surely, 2^{31551843349142} is an apocalyptic number.

31551843349142 is a deficient number, since it is larger than the sum of its proper divisors (15775947785290).

31551843349142 is a wasteful number, since it uses less digits than its factorization.

31551843349142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8703574.

The product of its digits is 6220800, while the sum is 53.

The spelling of 31551843349142 in words is "thirty-one trillion, five hundred fifty-one billion, eight hundred forty-three million, three hundred forty-nine thousand, one hundred forty-two".