31845176680 has 16 divisors (see below), whose sum is σ = 71651647620. Its totient is φ = 12738070656.

The previous prime is 31845176647. The next prime is 31845176717. The reversal of 31845176680 is 8667154813.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28192424836 + 3652751844 = 167906^2 + 60438^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398064669 + ... + 398064748.

Almost surely, 2^31845176680 is an apocalyptic number.

It is an amenable number.

31845176680 is an abundant number, since it is smaller than the sum of its proper divisors (39806470940).

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

31845176680 is a wasteful number, since it uses less digits than its factorization.

31845176680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796129428 (or 796129424 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 31845176680 in words is "thirty-one billion, eight hundred forty-five million, one hundred seventy-six thousand, six hundred eighty".