32319986813 has 2 divisors, whose sum is σ = 32319986814. Its totient is φ = 32319986812.

The previous prime is 32319986807. The next prime is 32319986861. The reversal of 32319986813 is 31868991323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22535413924 + 9784572889 = 150118^2 + 98917^2 .

It is a cyclic number.

It is not a de Polignac number, because 32319986813 - 2⁶ = 32319986749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32319926813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16159993406 + 16159993407.

It is an arithmetic number, because the mean of its divisors is an integer number (16159993407).

Almost surely, 2^32319986813 is an apocalyptic number.

It is an amenable number.

32319986813 is a deficient number, since it is larger than the sum of its proper divisors (1).

32319986813 is an equidigital number, since it uses as much as digits as its factorization.

32319986813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1679616, while the sum is 53.

The spelling of 32319986813 in words is "thirty-two billion, three hundred nineteen million, nine hundred eighty-six thousand, eight hundred thirteen".