77750238347 has 4 divisors (see below), whose sum is σ = 77809096776. Its totient is φ = 77691379920.

The previous prime is 77750238343. The next prime is 77750238367. The reversal of 77750238347 is 74383205777.

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

It is a cyclic number.

It is not a de Polignac number, because 77750238347 - 2² = 77750238343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77750238343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29427233 + ... + 29429874.

It is an arithmetic number, because the mean of its divisors is an integer number (19452274194).

Almost surely, 2^77750238347 is an apocalyptic number.

77750238347 is a deficient number, since it is larger than the sum of its proper divisors (58858429).

77750238347 is a wasteful number, since it uses less digits than its factorization.

77750238347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58858428.

The product of its (nonzero) digits is 6914880, while the sum is 53.

The spelling of 77750238347 in words is "seventy-seven billion, seven hundred fifty million, two hundred thirty-eight thousand, three hundred forty-seven".