40026206497 has 2 divisors, whose sum is σ = 40026206498. Its totient is φ = 40026206496.

The previous prime is 40026206449. The next prime is 40026206621. The reversal of 40026206497 is 79460262004.

40026206497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31923326241 + 8102880256 = 178671^2 + 90016^2 .

It is a cyclic number.

It is not a de Polignac number, because 40026206497 - 2⁷ = 40026206369 is a prime.

It is a super-2 number, since 2×40026206497² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40026206447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20013103248 + 20013103249.

It is an arithmetic number, because the mean of its divisors is an integer number (20013103249).

Almost surely, 2^40026206497 is an apocalyptic number.

It is an amenable number.

40026206497 is a deficient number, since it is larger than the sum of its proper divisors (1).

40026206497 is an equidigital number, since it uses as much as digits as its factorization.

40026206497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 40026206497 in words is "forty billion, twenty-six million, two hundred six thousand, four hundred ninety-seven".