265212213984 has 72 divisors (see below), whose sum is σ = 782130487320. Its totient is φ = 88404068736.

The previous prime is 265212213949. The next prime is 265212213991. The reversal of 265212213984 is 489312212562.

265212213984 is a `hidden beast` number, since 2 + 6 + 521 + 22 + 13 + 98 + 4 = 666.

265212213984 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17045479 + ... + 17061030.

It is an arithmetic number, because the mean of its divisors is an integer number (10862923435).

Almost surely, 2^265212213984 is an apocalyptic number.

265212213984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

265212213984 is an abundant number, since it is smaller than the sum of its proper divisors (516918273336).

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

265212213984 is an equidigital number, since it uses as much as digits as its factorization.

265212213984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34106534 (or 34106514 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The spelling of 265212213984 in words is "two hundred sixty-five billion, two hundred twelve million, two hundred thirteen thousand, nine hundred eighty-four".