40367591447 has 2 divisors, whose sum is σ = 40367591448. Its totient is φ = 40367591446.

The previous prime is 40367591437. The next prime is 40367591449. The reversal of 40367591447 is 74419576304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40367591447 - 2⁴ = 40367591431 is a prime.

Together with 40367591449, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 40367591395 and 40367591404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40367591449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20183795723 + 20183795724.

It is an arithmetic number, because the mean of its divisors is an integer number (20183795724).

Almost surely, 2^40367591447 is an apocalyptic number.

40367591447 is a deficient number, since it is larger than the sum of its proper divisors (1).

40367591447 is an equidigital number, since it uses as much as digits as its factorization.

40367591447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 40367591447 in words is "forty billion, three hundred sixty-seven million, five hundred ninety-one thousand, four hundred forty-seven".