5221172378 has 16 divisors (see below), whose sum is σ = 8000947584. Its totient is φ = 2554225440.

The previous prime is 5221172261. The next prime is 5221172381. The reversal of 5221172378 is 8732711225.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374513 + ... + 388203.

It is an arithmetic number, because the mean of its divisors is an integer number (500059224).

Almost surely, 2^5221172378 is an apocalyptic number.

5221172378 is a deficient number, since it is larger than the sum of its proper divisors (2779775206).

5221172378 is a wasteful number, since it uses less digits than its factorization.

5221172378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17797.

The product of its digits is 47040, while the sum is 38.

The square root of 5221172378 is about 72257.6804083829. The cubic root of 5221172378 is about 1734.8263525214.

The spelling of 5221172378 in words is "five billion, two hundred twenty-one million, one hundred seventy-two thousand, three hundred seventy-eight".