5188750778 has 16 divisors (see below), whose sum is σ = 8248317480. Its totient is φ = 2439584256.

The previous prime is 5188750769. The next prime is 5188750781. The reversal of 5188750778 is 8770578815.

It can be written as a sum of positive squares in 4 ways, for example, as 5061895609 + 126855169 = 71147^2 + 11263^2 .

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, 29201 + ... + 105972.

Almost surely, 2^5188750778 is an apocalyptic number.

5188750778 is a deficient number, since it is larger than the sum of its proper divisors (3059566702).

5188750778 is a wasteful number, since it uses less digits than its factorization.

5188750778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136321.

The product of its (nonzero) digits is 4390400, while the sum is 56.

The square root of 5188750778 is about 72032.9839587393. The cubic root of 5188750778 is about 1731.2280118013.

The spelling of 5188750778 in words is "five billion, one hundred eighty-eight million, seven hundred fifty thousand, seven hundred seventy-eight".