5123257784 has 8 divisors (see below), whose sum is σ = 9606108360. Its totient is φ = 2561628888.

The previous prime is 5123257781. The next prime is 5123257817. The reversal of 5123257784 is 4877523215.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5123257781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320203604 + ... + 320203619.

It is an arithmetic number, because the mean of its divisors is an integer number (1200763545).

Almost surely, 2^5123257784 is an apocalyptic number.

It is an amenable number.

5123257784 is a deficient number, since it is larger than the sum of its proper divisors (4482850576).

5123257784 is a wasteful number, since it uses less digits than its factorization.

5123257784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640407229 (or 640407225 counting only the distinct ones).

The product of its digits is 470400, while the sum is 44.

The square root of 5123257784 is about 71576.9361177188. The cubic root of 5123257784 is about 1723.9132309192.

The spelling of 5123257784 in words is "five billion, one hundred twenty-three million, two hundred fifty-seven thousand, seven hundred eighty-four".