5386720778 has 16 divisors (see below), whose sum is σ = 8230214304. Its totient is φ = 2643506160.

The previous prime is 5386720747. The next prime is 5386720841. The reversal of 5386720778 is 8770276835.

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, 9701 + ... + 104247.

It is an arithmetic number, because the mean of its divisors is an integer number (514388394).

Almost surely, 2^5386720778 is an apocalyptic number.

5386720778 is a deficient number, since it is larger than the sum of its proper divisors (2843493526).

5386720778 is a wasteful number, since it uses less digits than its factorization.

5386720778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95077.

The product of its (nonzero) digits is 3951360, while the sum is 53.

The square root of 5386720778 is about 73394.2830062397. The cubic root of 5386720778 is about 1752.9713632130.

The spelling of 5386720778 in words is "five billion, three hundred eighty-six million, seven hundred twenty thousand, seven hundred seventy-eight".