47233447777 has 4 divisors (see below), whose sum is σ = 47234165440. Its totient is φ = 47232730116.

The previous prime is 47233447771. The next prime is 47233447787. The reversal of 47233447777 is 77774433274.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77774433274 = 2 ⋅38887216637.

It is a cyclic number.

It is not a de Polignac number, because 47233447777 - 2¹⁹ = 47232923489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47233447771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248877 + ... + 395482.

It is an arithmetic number, because the mean of its divisors is an integer number (11808541360).

Almost surely, 2^47233447777 is an apocalyptic number.

It is an amenable number.

47233447777 is a deficient number, since it is larger than the sum of its proper divisors (717663).

47233447777 is an equidigital number, since it uses as much as digits as its factorization.

47233447777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717662.

The product of its digits is 19361664, while the sum is 55.

The spelling of 47233447777 in words is "forty-seven billion, two hundred thirty-three million, four hundred forty-seven thousand, seven hundred seventy-seven".