40782420599 has 2 divisors, whose sum is σ = 40782420600. Its totient is φ = 40782420598.

The previous prime is 40782420557. The next prime is 40782420649. The reversal of 40782420599 is 99502428704.

It is an a-pointer prime, because the next prime (40782420649) can be obtained adding 40782420599 to its sum of digits (50).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40782420599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40782420499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20391210299 + 20391210300.

It is an arithmetic number, because the mean of its divisors is an integer number (20391210300).

Almost surely, 2^40782420599 is an apocalyptic number.

40782420599 is a deficient number, since it is larger than the sum of its proper divisors (1).

40782420599 is an equidigital number, since it uses as much as digits as its factorization.

40782420599 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 40782420599 in words is "forty billion, seven hundred eighty-two million, four hundred twenty thousand, five hundred ninety-nine".