40853744647 has 2 divisors, whose sum is σ = 40853744648. Its totient is φ = 40853744646.

The previous prime is 40853744639. The next prime is 40853744713. The reversal of 40853744647 is 74644735804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40853744647 - 2³ = 40853744639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40853744594 and 40853744603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40853744047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20426872323 + 20426872324.

It is an arithmetic number, because the mean of its divisors is an integer number (20426872324).

Almost surely, 2^40853744647 is an apocalyptic number.

40853744647 is a deficient number, since it is larger than the sum of its proper divisors (1).

40853744647 is an equidigital number, since it uses as much as digits as its factorization.

40853744647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9031680, while the sum is 52.

The spelling of 40853744647 in words is "forty billion, eight hundred fifty-three million, seven hundred forty-four thousand, six hundred forty-seven".