32534020991 has 2 divisors, whose sum is σ = 32534020992. Its totient is φ = 32534020990.

The previous prime is 32534020979. The next prime is 32534021021. The reversal of 32534020991 is 19902043523.

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-32534020991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32534020901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16267010495 + 16267010496.

It is an arithmetic number, because the mean of its divisors is an integer number (16267010496).

Almost surely, 2^32534020991 is an apocalyptic number.

32534020991 is a deficient number, since it is larger than the sum of its proper divisors (1).

32534020991 is an equidigital number, since it uses as much as digits as its factorization.

32534020991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 38.

The spelling of 32534020991 in words is "thirty-two billion, five hundred thirty-four million, twenty thousand, nine hundred ninety-one".