43397379859968 has 480 divisors, whose sum is σ = 131795334871200. Its totient is φ = 14253606567936.

The previous prime is 43397379859927. The next prime is 43397379859993. The reversal of 43397379859968 is 86995897379334.

43397379859968 is a `hidden beast` number, since 4 + 3 + 3 + 9 + 7 + 3 + 7 + 9 + 8 + 599 + 6 + 8 = 666.

It is a super-2 number, since 2×43397379859968² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13523644348 + ... + 13523647556.

It is an arithmetic number, because the mean of its divisors is an integer number (274573614315).

Almost surely, 2^{43397379859968} is an apocalyptic number.

43397379859968 is a gapful number since it is divisible by the number (48) 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 43397379859968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65897667435600).

43397379859968 is an abundant number, since it is smaller than the sum of its proper divisors (88397955011232).

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

43397379859968 is an equidigital number, since it uses as much as digits as its factorization.

43397379859968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4804 (or 4776 counting only the distinct ones).

The product of its digits is 66663959040, while the sum is 90.

The spelling of 43397379859968 in words is "forty-three trillion, three hundred ninety-seven billion, three hundred seventy-nine million, eight hundred fifty-nine thousand, nine hundred sixty-eight".