32219847997 has 2 divisors, whose sum is σ = 32219847998. Its totient is φ = 32219847996.

The previous prime is 32219847971. The next prime is 32219848121. The reversal of 32219847997 is 79974891223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30534417081 + 1685430916 = 174741^2 + 41054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32219847997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32219847097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16109923998 + 16109923999.

It is an arithmetic number, because the mean of its divisors is an integer number (16109923999).

Almost surely, 2^32219847997 is an apocalyptic number.

It is an amenable number.

32219847997 is a deficient number, since it is larger than the sum of its proper divisors (1).

32219847997 is an equidigital number, since it uses as much as digits as its factorization.

32219847997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 61.

The spelling of 32219847997 in words is "thirty-two billion, two hundred nineteen million, eight hundred forty-seven thousand, nine hundred ninety-seven".