40398082597 has 2 divisors, whose sum is σ = 40398082598. Its totient is φ = 40398082596.

The previous prime is 40398082547. The next prime is 40398082603. The reversal of 40398082597 is 79528089304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32862800961 + 7535281636 = 181281^2 + 86806^2 .

It is a cyclic number.

It is not a de Polignac number, because 40398082597 - 2¹¹ = 40398080549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40398082547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20199041298 + 20199041299.

It is an arithmetic number, because the mean of its divisors is an integer number (20199041299).

Almost surely, 2^40398082597 is an apocalyptic number.

It is an amenable number.

40398082597 is a deficient number, since it is larger than the sum of its proper divisors (1).

40398082597 is an equidigital number, since it uses as much as digits as its factorization.

40398082597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 40398082597 in words is "forty billion, three hundred ninety-eight million, eighty-two thousand, five hundred ninety-seven".