76365453649 has 3 divisors (see below), whose sum is σ = 76365729993. Its totient is φ = 76365177306.

The previous prime is 76365453617. The next prime is 76365453677. The reversal of 76365453649 is 94635456367.

It is a happy number.

The square root of 76365453649 is 276343.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 76365453649 - 2⁵ = 76365453617 is a prime.

It is a super-2 number, since 2×76365453649² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76365453593 and 76365453602.

It is not an unprimeable number, because it can be changed into a prime (76365453679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 138172 + ... + 414514.

It is an arithmetic number, because the mean of its divisors is an integer number (25455243331).

Almost surely, 2^76365453649 is an apocalyptic number.

76365453649 is the 276343-rd square number.

76365453649 is the 138172-nd centered octagonal number.

It is an amenable number.

76365453649 is a deficient number, since it is larger than the sum of its proper divisors (276344).

76365453649 is an frugal number, since it uses more digits than its factorization.

76365453649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552686 (or 276343 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 58.

The spelling of 76365453649 in words is "seventy-six billion, three hundred sixty-five million, four hundred fifty-three thousand, six hundred forty-nine".