31606055850 has 48 divisors (see below), whose sum is σ = 78460772832. Its totient is φ = 8419920960.

The previous prime is 31606055849. The next prime is 31606055861. The reversal of 31606055850 is 5855060613.

It is a junction number, because it is equal to n+sod(n) for n = 31606055799 and 31606055808.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47949 + ... + 255951.

It is an arithmetic number, because the mean of its divisors is an integer number (1634599434).

Almost surely, 2^31606055850 is an apocalyptic number.

31606055850 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31606055850 is an abundant number, since it is smaller than the sum of its proper divisors (46854716982).

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

31606055850 is a wasteful number, since it uses less digits than its factorization.

31606055850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209031 (or 209026 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 31606055850 in words is "thirty-one billion, six hundred six million, fifty-five thousand, eight hundred fifty".