5122447777 has 8 divisors (see below), whose sum is σ = 5181813000. Its totient is φ = 5063122944.

The previous prime is 5122447753. The next prime is 5122447787. The reversal of 5122447777 is 7777442215.

It is a happy number.

5122447777 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6765201 + 5115682576 = 2601^2 + 71524^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5122447777 - 2²³ = 5114059169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5122447717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299349 + ... + 315997.

It is an arithmetic number, because the mean of its divisors is an integer number (647726625).

Almost surely, 2^5122447777 is an apocalyptic number.

It is an amenable number.

5122447777 is a deficient number, since it is larger than the sum of its proper divisors (59365223).

5122447777 is a wasteful number, since it uses less digits than its factorization.

5122447777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20195.

The product of its digits is 768320, while the sum is 46.

The square root of 5122447777 is about 71571.2775979303. The cubic root of 5122447777 is about 1723.8223736664.

The spelling of 5122447777 in words is "five billion, one hundred twenty-two million, four hundred forty-seven thousand, seven hundred seventy-seven".