823863680265 has 32 divisors (see below), whose sum is σ = 1327089202560. Its totient is φ = 436429794816.

The previous prime is 823863680243. The next prime is 823863680279. The reversal of 823863680265 is 562086368328.

823863680265 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 823863680265 - 2¹⁷ = 823863549193 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2526966 + ... + 2834304.

It is an arithmetic number, because the mean of its divisors is an integer number (41471537580).

Almost surely, 2^823863680265 is an apocalyptic number.

It is an amenable number.

823863680265 is a deficient number, since it is larger than the sum of its proper divisors (503225522295).

823863680265 is a wasteful number, since it uses less digits than its factorization.

823863680265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308553.

The product of its (nonzero) digits is 19906560, while the sum is 57.

The spelling of 823863680265 in words is "eight hundred twenty-three billion, eight hundred sixty-three million, six hundred eighty thousand, two hundred sixty-five".