31446486216 has 24 divisors (see below), whose sum is σ = 85167567030. Its totient is φ = 10482162048.

The previous prime is 31446486209. The next prime is 31446486241. The reversal of 31446486216 is 61268464413.

31446486216 is a `hidden beast` number, since 3 + 14 + 4 + 6 + 4 + 8 + 621 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19923322500 + 11523163716 = 141150^2 + 107346^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 218378305 + ... + 218378448.

Almost surely, 2^31446486216 is an apocalyptic number.

31446486216 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31446486216 is an abundant number, since it is smaller than the sum of its proper divisors (53721080814).

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

31446486216 is a wasteful number, since it uses less digits than its factorization.

31446486216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436756765 (or 436756758 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The spelling of 31446486216 in words is "thirty-one billion, four hundred forty-six million, four hundred eighty-six thousand, two hundred sixteen".