31764890203 has 8 divisors (see below), whose sum is σ = 32373429408. Its totient is φ = 31156691904.

The previous prime is 31764890197. The next prime is 31764890221. The reversal of 31764890203 is 30209846713.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31764890203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31764890203.

It is not an unprimeable number, because it can be changed into a prime (31764890273) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 107026 + ... + 273832.

It is an arithmetic number, because the mean of its divisors is an integer number (4046678676).

Almost surely, 2^31764890203 is an apocalyptic number.

31764890203 is a deficient number, since it is larger than the sum of its proper divisors (608539205).

31764890203 is a wasteful number, since it uses less digits than its factorization.

31764890203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170453.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 31764890203 in words is "thirty-one billion, seven hundred sixty-four million, eight hundred ninety thousand, two hundred three".