40186414069 has 2 divisors, whose sum is σ = 40186414070. Its totient is φ = 40186414068.

The previous prime is 40186414043. The next prime is 40186414091. The reversal of 40186414069 is 96041468104.

40186414069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38500326225 + 1686087844 = 196215^2 + 41062^2 .

It is a cyclic number.

It is not a de Polignac number, because 40186414069 - 2¹³ = 40186405877 is a prime.

It is a super-2 number, since 2×40186414069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40186414369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20093207034 + 20093207035.

It is an arithmetic number, because the mean of its divisors is an integer number (20093207035).

Almost surely, 2^40186414069 is an apocalyptic number.

It is an amenable number.

40186414069 is a deficient number, since it is larger than the sum of its proper divisors (1).

40186414069 is an equidigital number, since it uses as much as digits as its factorization.

40186414069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 40186414069 in words is "forty billion, one hundred eighty-six million, four hundred fourteen thousand, sixty-nine".