32400400399 has 2 divisors, whose sum is σ = 32400400400. Its totient is φ = 32400400398.

The previous prime is 32400400381. The next prime is 32400400441. The reversal of 32400400399 is 99300400423.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 32400400399 - 2¹³ = 32400392207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32400400339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16200200199 + 16200200200.

It is an arithmetic number, because the mean of its divisors is an integer number (16200200200).

Almost surely, 2^32400400399 is an apocalyptic number.

32400400399 is a deficient number, since it is larger than the sum of its proper divisors (1).

32400400399 is an equidigital number, since it uses as much as digits as its factorization.

32400400399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The spelling of 32400400399 in words is "thirty-two billion, four hundred million, four hundred thousand, three hundred ninety-nine".