32020373509 has 2 divisors, whose sum is σ = 32020373510. Its totient is φ = 32020373508.

The previous prime is 32020373449. The next prime is 32020373531. The reversal of 32020373509 is 90537302023.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22239756900 + 9780616609 = 149130^2 + 98897^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32020373509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32020374509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16010186754 + 16010186755.

It is an arithmetic number, because the mean of its divisors is an integer number (16010186755).

Almost surely, 2^32020373509 is an apocalyptic number.

It is an amenable number.

32020373509 is a deficient number, since it is larger than the sum of its proper divisors (1).

32020373509 is an equidigital number, since it uses as much as digits as its factorization.

32020373509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 34.

The spelling of 32020373509 in words is "thirty-two billion, twenty million, three hundred seventy-three thousand, five hundred nine".