63074815609 has 9 divisors (see below), whose sum is σ = 68303483823. Its totient is φ = 58219892952.

The previous prime is 63074815567. The next prime is 63074815619. The reversal of 63074815609 is 90651847036.

The square root of 63074815609 is 251147.

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

It can be written as a sum of positive squares in only one way, i.e., 9330594025 + 53744221584 = 96595^2 + 231828^2 .

It is not a de Polignac number, because 63074815609 - 2¹¹ = 63074813561 is a prime.

It is a super-3 number, since 3×63074815609³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63074815619) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3255252 + ... + 3274570.

Almost surely, 2^63074815609 is an apocalyptic number.

63074815609 is the 251147-th square number.

63074815609 is the 125574-th centered octagonal number.

It is an amenable number.

63074815609 is a deficient number, since it is larger than the sum of its proper divisors (5228668214).

63074815609 is an frugal number, since it uses more digits than its factorization.

63074815609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38664 (or 19332 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

Multiplying 63074815609 by its sum of digits (49), we get a square (3090665964841 = 1758029²).

The spelling of 63074815609 in words is "sixty-three billion, seventy-four million, eight hundred fifteen thousand, six hundred nine".