264255778758 has 32 divisors (see below), whose sum is σ = 589053133440. Its totient is φ = 78540416640.

The previous prime is 264255778753. The next prime is 264255778781. The reversal of 264255778758 is 857877552462.

264255778758 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 2×264255778758² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264255778753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68175508 + ... + 68179383.

It is an arithmetic number, because the mean of its divisors is an integer number (18407910420).

Almost surely, 2^264255778758 is an apocalyptic number.

264255778758 is an abundant number, since it is smaller than the sum of its proper divisors (324797354682).

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

264255778758 is a wasteful number, since it uses less digits than its factorization.

264255778758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136354932.

The product of its digits is 263424000, while the sum is 66.

The spelling of 264255778758 in words is "two hundred sixty-four billion, two hundred fifty-five million, seven hundred seventy-eight thousand, seven hundred fifty-eight".