265313587396 has 81 divisors (see below), whose sum is σ = 552929045319. Its totient is φ = 111258576000.

The previous prime is 265313587351. The next prime is 265313587403. The reversal of 265313587396 is 693785313562.

The square root of 265313587396 is 515086.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 138480736900 + 126832850496 = 372130^2 + 356136^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 265313587396.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 147313696 + ... + 147315496.

Almost surely, 2^265313587396 is an apocalyptic number.

265313587396 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

265313587396 is the 515086-th square number.

It is an amenable number.

265313587396 is an abundant number, since it is smaller than the sum of its proper divisors (287615457923).

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

265313587396 is a wasteful number, since it uses less digits than its factorization.

265313587396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3654 (or 1827 counting only the distinct ones).

The product of its digits is 24494400, while the sum is 58.

The spelling of 265313587396 in words is "two hundred sixty-five billion, three hundred thirteen million, five hundred eighty-seven thousand, three hundred ninety-six".