43378418916 has 240 divisors, whose sum is σ = 134383800320. Its totient is φ = 11989308960.

The previous prime is 43378418911. The next prime is 43378418927. The reversal of 43378418916 is 61981487334.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (43378418911) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 17083575 + ... + 17086113.

Almost surely, 2^43378418916 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 43378418916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67191900160).

43378418916 is an abundant number, since it is smaller than the sum of its proper divisors (91005381404).

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

43378418916 is an equidigital number, since it uses as much as digits as its factorization.

43378418916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2608 (or 2582 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 43378418916 in words is "forty-three billion, three hundred seventy-eight million, four hundred eighteen thousand, nine hundred sixteen".