268628520630 has 64 divisors (see below), whose sum is σ = 646744186368. Its totient is φ = 71408413440.

The previous prime is 268628520599. The next prime is 268628520637. The reversal of 268628520630 is 36025826862.

268628520630 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×268628520630² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 268628520630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268628520637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13792279 + ... + 13811741.

It is an arithmetic number, because the mean of its divisors is an integer number (10105377912).

Almost surely, 2^268628520630 is an apocalyptic number.

268628520630 is an abundant number, since it is smaller than the sum of its proper divisors (378115665738).

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

268628520630 is a wasteful number, since it uses less digits than its factorization.

268628520630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20901.

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 268628520630 in words is "two hundred sixty-eight billion, six hundred twenty-eight million, five hundred twenty thousand, six hundred thirty".