263672760643 has 8 divisors (see below), whose sum is σ = 264080271312. Its totient is φ = 263265484416.

The previous prime is 263672760557. The next prime is 263672760671. The reversal of 263672760643 is 346067276362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263672760643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263672760683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2263071 + ... + 2376727.

It is an arithmetic number, because the mean of its divisors is an integer number (33010033914).

Almost surely, 2^263672760643 is an apocalyptic number.

263672760643 is a deficient number, since it is larger than the sum of its proper divisors (407510669).

263672760643 is a wasteful number, since it uses less digits than its factorization.

263672760643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117221.

The product of its (nonzero) digits is 9144576, while the sum is 52.

The spelling of 263672760643 in words is "two hundred sixty-three billion, six hundred seventy-two million, seven hundred sixty thousand, six hundred forty-three".