43115400426320 has 80 divisors (see below), whose sum is σ = 101197666476480. Its totient is φ = 17082542241792.

The previous prime is 43115400426289. The next prime is 43115400426379. The reversal of 43115400426320 is 2362400451134.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 337727 + ... + 9292193.

It is an arithmetic number, because the mean of its divisors is an integer number (1264970830956).

Almost surely, 2^{43115400426320} is an apocalyptic number.

43115400426320 is a gapful number since it is divisible by the number (40) 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 43115400426320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50598833238240).

43115400426320 is an abundant number, since it is smaller than the sum of its proper divisors (58082266050160).

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

43115400426320 is a wasteful number, since it uses less digits than its factorization.

43115400426320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8955052 (or 8955046 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 43115400426320 its reverse (2362400451134), we get a palindrome (45477800877454).

The spelling of 43115400426320 in words is "forty-three trillion, one hundred fifteen billion, four hundred million, four hundred twenty-six thousand, three hundred twenty".