263423947652 has 24 divisors (see below), whose sum is σ = 463842849792. Its totient is φ = 130898721600.

The previous prime is 263423947649. The next prime is 263423947667. The reversal of 263423947652 is 256749324362.

263423947652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 263423947594 and 263423947603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649952 + ... + 974312.

It is an arithmetic number, because the mean of its divisors is an integer number (19326785408).

Almost surely, 2^263423947652 is an apocalyptic number.

It is an amenable number.

263423947652 is a deficient number, since it is larger than the sum of its proper divisors (200418902140).

263423947652 is a wasteful number, since it uses less digits than its factorization.

263423947652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325619 (or 325617 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 53.

The spelling of 263423947652 in words is "two hundred sixty-three billion, four hundred twenty-three million, nine hundred forty-seven thousand, six hundred fifty-two".