31836880147 has 2 divisors, whose sum is σ = 31836880148. Its totient is φ = 31836880146.

The previous prime is 31836880133. The next prime is 31836880171. The reversal of 31836880147 is 74108863813.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31836880147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31836880147.

It is not a weakly prime, because it can be changed into another prime (31836880447) by changing a digit.

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 as a sum of consecutive naturals, namely, 15918440073 + 15918440074.

It is an arithmetic number, because the mean of its divisors is an integer number (15918440074).

Almost surely, 2^31836880147 is an apocalyptic number.

31836880147 is a deficient number, since it is larger than the sum of its proper divisors (1).

31836880147 is an equidigital number, since it uses as much as digits as its factorization.

31836880147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 31836880147 in words is "thirty-one billion, eight hundred thirty-six million, eight hundred eighty thousand, one hundred forty-seven".