5291389235968 has 144 divisors (see below), whose sum is σ = 12210351622560. Its totient is φ = 2265598361600.

The previous prime is 5291389235959. The next prime is 5291389235981. The reversal of 5291389235968 is 8695329831925.

It is a super-3 number, since 3×5291389235968³ (a number of 39 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5291389235897 and 5291389235906.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2558046 + ... + 4138402.

It is an arithmetic number, because the mean of its divisors is an integer number (84794108490).

Almost surely, 2^{5291389235968} is an apocalyptic number.

5291389235968 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5291389235968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6105175811280).

5291389235968 is an abundant number, since it is smaller than the sum of its proper divisors (6918962386592).

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

5291389235968 is a wasteful number, since it uses less digits than its factorization.

5291389235968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580454 (or 1580440 counting only the distinct ones).

The product of its digits is 251942400, while the sum is 70.

The spelling of 5291389235968 in words is "five trillion, two hundred ninety-one billion, three hundred eighty-nine million, two hundred thirty-five thousand, nine hundred sixty-eight".