7727252641 has 4 divisors (see below), whose sum is σ = 8181796932. Its totient is φ = 7272708352.

The previous prime is 7727252629. The next prime is 7727252669. The reversal of 7727252641 is 1462527277.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7174767616 + 552485025 = 84704^2 + 23505^2 .

It is a cyclic number.

It is not a de Polignac number, because 7727252641 - 2⁵ = 7727252609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7727252941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227272120 + ... + 227272153.

It is an arithmetic number, because the mean of its divisors is an integer number (2045449233).

Almost surely, 2^7727252641 is an apocalyptic number.

It is an amenable number.

7727252641 is a deficient number, since it is larger than the sum of its proper divisors (454544291).

7727252641 is a wasteful number, since it uses less digits than its factorization.

7727252641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454544290.

The product of its digits is 329280, while the sum is 43.

The square root of 7727252641 is about 87904.7930490710. The cubic root of 7727252641 is about 1977.0077444007.

The spelling of 7727252641 in words is "seven billion, seven hundred twenty-seven million, two hundred fifty-two thousand, six hundred forty-one".