5298378978238 has 8 divisors (see below), whose sum is σ = 7947579134880. Its totient is φ = 2649185933280.

The previous prime is 5298378978143. The next prime is 5298378978257. The reversal of 5298378978238 is 8328798738925.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 878358 + ... + 3371686.

It is an arithmetic number, because the mean of its divisors is an integer number (993447391860).

Almost surely, 2^{5298378978238} is an apocalyptic number.

5298378978238 is a deficient number, since it is larger than the sum of its proper divisors (2649200156642).

5298378978238 is a wasteful number, since it uses less digits than its factorization.

5298378978238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3555842.

The product of its digits is 2926264320, while the sum is 79.

The spelling of 5298378978238 in words is "five trillion, two hundred ninety-eight billion, three hundred seventy-eight million, nine hundred seventy-eight thousand, two hundred thirty-eight".