40425374369 has 2 divisors, whose sum is σ = 40425374370. Its totient is φ = 40425374368.

The previous prime is 40425374329. The next prime is 40425374371. The reversal of 40425374369 is 96347352404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25221251344 + 15204123025 = 158812^2 + 123305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40425374369 is a prime.

It is a super-2 number, since 2×40425374369² (a number of 22 digits) contains 22 as substring.

Together with 40425374371, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40425374329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20212687184 + 20212687185.

It is an arithmetic number, because the mean of its divisors is an integer number (20212687185).

Almost surely, 2^40425374369 is an apocalyptic number.

It is an amenable number.

40425374369 is a deficient number, since it is larger than the sum of its proper divisors (1).

40425374369 is an equidigital number, since it uses as much as digits as its factorization.

40425374369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 47.

The spelling of 40425374369 in words is "forty billion, four hundred twenty-five million, three hundred seventy-four thousand, three hundred sixty-nine".