5388125778 has 64 divisors (see below), whose sum is σ = 13975326720. Its totient is φ = 1506704976.

The previous prime is 5388125753. The next prime is 5388125867. The reversal of 5388125778 is 8775218835.

5388125778 is a `hidden beast` number, since 5 + 388 + 1 + 257 + 7 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133876 + ... + 169407.

It is an arithmetic number, because the mean of its divisors is an integer number (218364480).

Almost surely, 2^5388125778 is an apocalyptic number.

5388125778 is an abundant number, since it is smaller than the sum of its proper divisors (8587200942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5388125778 is a wasteful number, since it uses less digits than its factorization.

5388125778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303348 (or 303342 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 54.

The square root of 5388125778 is about 73403.8539723903. The cubic root of 5388125778 is about 1753.1237571440.

The spelling of 5388125778 in words is "five billion, three hundred eighty-eight million, one hundred twenty-five thousand, seven hundred seventy-eight".