8640385148263 has 4 divisors (see below), whose sum is σ = 9425874707208. Its totient is φ = 7854895589320.

The previous prime is 8640385148237. The next prime is 8640385148323. The reversal of 8640385148263 is 3628415830468.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8640385148263 - 2⁵ = 8640385148231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8640385148198 and 8640385148207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8640385148363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392744779456 + ... + 392744779477.

It is an arithmetic number, because the mean of its divisors is an integer number (2356468676802).

Almost surely, 2^{8640385148263} is an apocalyptic number.

8640385148263 is a deficient number, since it is larger than the sum of its proper divisors (785489558945).

8640385148263 is a wasteful number, since it uses less digits than its factorization.

8640385148263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785489558944.

The product of its (nonzero) digits is 26542080, while the sum is 58.

The spelling of 8640385148263 in words is "eight trillion, six hundred forty billion, three hundred eighty-five million, one hundred forty-eight thousand, two hundred sixty-three".