40262819447 has 2 divisors, whose sum is σ = 40262819448. Its totient is φ = 40262819446.

The previous prime is 40262819423. The next prime is 40262819483. The reversal of 40262819447 is 74491826204.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40262819447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40262815447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20131409723 + 20131409724.

It is an arithmetic number, because the mean of its divisors is an integer number (20131409724).

Almost surely, 2^40262819447 is an apocalyptic number.

40262819447 is a deficient number, since it is larger than the sum of its proper divisors (1).

40262819447 is an equidigital number, since it uses as much as digits as its factorization.

40262819447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 40262819447 in words is "forty billion, two hundred sixty-two million, eight hundred nineteen thousand, four hundred forty-seven".