49565452689 has 45 divisors (see below), whose sum is σ = 76773444033. Its totient is φ = 31866797088.

The previous prime is 49565452649. The next prime is 49565452771. The reversal of 49565452689 is 98625456594.

It is a happy number.

The square root of 49565452689 is 222633.

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

49565452689 is a `hidden beast` number, since 4 + 9 + 5 + 6 + 545 + 2 + 6 + 89 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12164987025 + 37400465664 = 110295^2 + 193392^2 .

It is not a de Polignac number, because 49565452689 - 2¹³ = 49565444497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49565452649) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 58106787 + ... + 58107639.

Almost surely, 2^49565452689 is an apocalyptic number.

49565452689 is the 222633-rd square number.

49565452689 is the 111317-th centered octagonal number.

It is an amenable number.

49565452689 is a deficient number, since it is larger than the sum of its proper divisors (27207991344).

49565452689 is an frugal number, since it uses more digits than its factorization.

49565452689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776 (or 885 counting only the distinct ones).

The product of its digits is 93312000, while the sum is 63.

The spelling of 49565452689 in words is "forty-nine billion, five hundred sixty-five million, four hundred fifty-two thousand, six hundred eighty-nine".