5578027778 has 8 divisors (see below), whose sum is σ = 8571115980. Its totient is φ = 2720989120.

The previous prime is 5578027757. The next prime is 5578027787. The reversal of 5578027778 is 8777208755.

It can be written as a sum of positive squares in 2 ways, for example, as 3635245849 + 1942781929 = 60293^2 + 44077^2 .

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

It is a super-2 number, since 2×5578027778² = 62228787784279234568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34012283 + ... + 34012446.

Almost surely, 2^5578027778 is an apocalyptic number.

5578027778 is a deficient number, since it is larger than the sum of its proper divisors (2993088202).

5578027778 is a wasteful number, since it uses less digits than its factorization.

5578027778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68024772.

The product of its (nonzero) digits is 7683200, while the sum is 56.

The square root of 5578027778 is about 74686.1953643376. The cubic root of 5578027778 is about 1773.4824326351.

The spelling of 5578027778 in words is "five billion, five hundred seventy-eight million, twenty-seven thousand, seven hundred seventy-eight".