31850980545 has 32 divisors (see below), whose sum is σ = 51216802560. Its totient is φ = 16902236160.

The previous prime is 31850980519. The next prime is 31850980559. The reversal of 31850980545 is 54508905813.

It is a happy number.

It is not a de Polignac number, because 31850980545 - 2⁸ = 31850980289 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31850980494 and 31850980503.

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 31 ways as a sum of consecutive naturals, for example, 5227861 + ... + 5233949.

It is an arithmetic number, because the mean of its divisors is an integer number (1600525080).

Almost surely, 2^31850980545 is an apocalyptic number.

It is an amenable number.

31850980545 is a deficient number, since it is larger than the sum of its proper divisors (19365822015).

31850980545 is a wasteful number, since it uses less digits than its factorization.

31850980545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7785.

The product of its (nonzero) digits is 864000, while the sum is 48.

The spelling of 31850980545 in words is "thirty-one billion, eight hundred fifty million, nine hundred eighty thousand, five hundred forty-five".