263643571248 has 80 divisors (see below), whose sum is σ = 685650282240. Its totient is φ = 87293161728.

The previous prime is 263643571211. The next prime is 263643571271. The reversal of 263643571248 is 842175346362.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 263643571248.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4755786 + ... + 4810902.

It is an arithmetic number, because the mean of its divisors is an integer number (8570628528).

Almost surely, 2^263643571248 is an apocalyptic number.

It is an amenable number.

263643571248 is an abundant number, since it is smaller than the sum of its proper divisors (422006710992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263643571248 is a wasteful number, since it uses less digits than its factorization.

263643571248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55794 (or 55788 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 51.

The spelling of 263643571248 in words is "two hundred sixty-three billion, six hundred forty-three million, five hundred seventy-one thousand, two hundred forty-eight".