31771620006 has 32 divisors (see below), whose sum is σ = 73851713280. Its totient is φ = 8923747296.

The previous prime is 31771619993. The next prime is 31771620047. The reversal of 31771620006 is 60002617713.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6408261 + ... + 6413216.

It is an arithmetic number, because the mean of its divisors is an integer number (2307866040).

Almost surely, 2^31771620006 is an apocalyptic number.

31771620006 is an abundant number, since it is smaller than the sum of its proper divisors (42080093274).

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

31771620006 is a wasteful number, since it uses less digits than its factorization.

31771620006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12821548.

The product of its (nonzero) digits is 10584, while the sum is 33.

The spelling of 31771620006 in words is "thirty-one billion, seven hundred seventy-one million, six hundred twenty thousand, six".