5398725778 has 8 divisors (see below), whose sum is σ = 8524303920. Its totient is φ = 2557291140.

The previous prime is 5398725769. The next prime is 5398725823. The reversal of 5398725778 is 8775278935.

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

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 3 ways as a sum of consecutive naturals, for example, 71035828 + ... + 71035903.

It is an arithmetic number, because the mean of its divisors is an integer number (1065537990).

Almost surely, 2^5398725778 is an apocalyptic number.

5398725778 is a deficient number, since it is larger than the sum of its proper divisors (3125578142).

5398725778 is a wasteful number, since it uses less digits than its factorization.

5398725778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142071752.

The product of its digits is 29635200, while the sum is 61.

The square root of 5398725778 is about 73476.0217894246. The cubic root of 5398725778 is about 1754.2726377119.

The spelling of 5398725778 in words is "five billion, three hundred ninety-eight million, seven hundred twenty-five thousand, seven hundred seventy-eight".