5125664378 has 8 divisors (see below), whose sum is σ = 7694100468. Its totient is φ = 2560964224.

The previous prime is 5125664377. The next prime is 5125664387. The reversal of 5125664378 is 8734665215.

It can be written as a sum of positive squares in 2 ways, for example, as 5105531209 + 20133169 = 71453^2 + 4487^2 .

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

It is not an unprimeable number, because it can be changed into a prime (5125664377) 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, 930551 + ... + 936042.

Almost surely, 2^5125664378 is an apocalyptic number.

5125664378 is a deficient number, since it is larger than the sum of its proper divisors (2568436090).

5125664378 is a wasteful number, since it uses less digits than its factorization.

5125664378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867968.

The product of its digits is 1209600, while the sum is 47.

The square root of 5125664378 is about 71593.7453832386. The cubic root of 5125664378 is about 1724.1831184251.

The spelling of 5125664378 in words is "five billion, one hundred twenty-five million, six hundred sixty-four thousand, three hundred seventy-eight".