263008380728 has 32 divisors (see below), whose sum is σ = 495809694000. Its totient is φ = 130794377472.

The previous prime is 263008380727. The next prime is 263008380749. The reversal of 263008380728 is 827083800362.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263008380721) 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, 982748 + ... + 1221396.

Almost surely, 2^263008380728 is an apocalyptic number.

It is an amenable number.

263008380728 is a deficient number, since it is larger than the sum of its proper divisors (232801313272).

263008380728 is a wasteful number, since it uses less digits than its factorization.

263008380728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239399 (or 239395 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 263008380728 in words is "two hundred sixty-three billion, eight million, three hundred eighty thousand, seven hundred twenty-eight".