265463996028 has 144 divisors (see below), whose sum is σ = 786311100288. Its totient is φ = 68928720000.

The previous prime is 265463996027. The next prime is 265463996087. The reversal of 265463996028 is 820699364562.

It is a happy number.

It is a super-2 number, since 2×265463996028² (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 (265463996027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28784458 + ... + 28793678.

It is an arithmetic number, because the mean of its divisors is an integer number (5460493752).

Almost surely, 2^265463996028 is an apocalyptic number.

265463996028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265463996028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393155550144).

265463996028 is an abundant number, since it is smaller than the sum of its proper divisors (520847104260).

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

265463996028 is a wasteful number, since it uses less digits than its factorization.

265463996028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13704 (or 13695 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 60.

The spelling of 265463996028 in words is "two hundred sixty-five billion, four hundred sixty-three million, nine hundred ninety-six thousand, twenty-eight".