263261328700 has 18 divisors (see below), whose sum is σ = 571277083496. Its totient is φ = 105304531440.

The previous prime is 263261328647. The next prime is 263261328703. The reversal of 263261328700 is 7823162362.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263261328703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1316306544 + ... + 1316306743.

Almost surely, 2^263261328700 is an apocalyptic number.

263261328700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263261328700 is an abundant number, since it is smaller than the sum of its proper divisors (308015754796).

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

263261328700 is a wasteful number, since it uses less digits than its factorization.

263261328700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632613301 (or 2632613294 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 263261328700 in words is "two hundred sixty-three billion, two hundred sixty-one million, three hundred twenty-eight thousand, seven hundred".