5398725780 has 144 divisors (see below), whose sum is σ = 18814408704. Its totient is φ = 1227479040.

The previous prime is 5398725769. The next prime is 5398725823. The reversal of 5398725780 is 875278935.

5398725780 is a `hidden beast` number, since 539 + 8 + 7 + 25 + 7 + 80 = 666.

It is a congruent 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 47 ways as a sum of consecutive naturals, for example, 229444 + ... + 251876.

It is an arithmetic number, because the mean of its divisors is an integer number (130655616).

Almost surely, 2^5398725780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5398725780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9407204352).

5398725780 is an abundant number, since it is smaller than the sum of its proper divisors (13415682924).

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

5398725780 is a wasteful number, since it uses less digits than its factorization.

5398725780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22646 (or 22641 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The square root of 5398725780 is about 73476.0218030345. The cubic root of 5398725780 is about 1754.2726379285.

The spelling of 5398725780 in words is "five billion, three hundred ninety-eight million, seven hundred twenty-five thousand, seven hundred eighty".