40320409902859 has 2 divisors, whose sum is σ = 40320409902860. Its totient is φ = 40320409902858.

The previous prime is 40320409902827. The next prime is 40320409902881. The reversal of 40320409902859 is 95820990402304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40320409902859 - 2⁵ = 40320409902827 is a prime.

It is a super-2 number, since 2×40320409902859² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40320409902809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20160204951429 + 20160204951430.

It is an arithmetic number, because the mean of its divisors is an integer number (20160204951430).

Almost surely, 2^{40320409902859} is an apocalyptic number.

40320409902859 is a deficient number, since it is larger than the sum of its proper divisors (1).

40320409902859 is an equidigital number, since it uses as much as digits as its factorization.

40320409902859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 40320409902859 in words is "forty trillion, three hundred twenty billion, four hundred nine million, nine hundred two thousand, eight hundred fifty-nine".