77528862241 has 4 divisors (see below), whose sum is σ = 77536619712. Its totient is φ = 77521104772.

The previous prime is 77528862239. The next prime is 77528862251. The reversal of 77528862241 is 14226882577.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 77528862241 - 2¹ = 77528862239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77528862251) 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, 3863725 + ... + 3883738.

It is an arithmetic number, because the mean of its divisors is an integer number (19384154928).

Almost surely, 2^77528862241 is an apocalyptic number.

It is an amenable number.

77528862241 is a deficient number, since it is larger than the sum of its proper divisors (7757471).

77528862241 is a wasteful number, since it uses less digits than its factorization.

77528862241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7757470.

The product of its digits is 3010560, while the sum is 52.

The spelling of 77528862241 in words is "seventy-seven billion, five hundred twenty-eight million, eight hundred sixty-two thousand, two hundred forty-one".