31684440895042 has 8 divisors (see below), whose sum is σ = 51182558368956. Its totient is φ = 14623588105392.

The previous prime is 31684440894947. The next prime is 31684440895067. The reversal of 31684440895042 is 24059804448613.

It can be written as a sum of positive squares in 2 ways, for example, as 30404626093521 + 1279814801521 = 5514039^2 + 1131289^2 .

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

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, 609316171033 + ... + 609316171084.

Almost surely, 2^{31684440895042} is an apocalyptic number.

31684440895042 is a deficient number, since it is larger than the sum of its proper divisors (19498117473914).

31684440895042 is a wasteful number, since it uses less digits than its factorization.

31684440895042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218632342132.

The product of its (nonzero) digits is 26542080, while the sum is 58.

The spelling of 31684440895042 in words is "thirty-one trillion, six hundred eighty-four billion, four hundred forty million, eight hundred ninety-five thousand, forty-two".