43377961104 has 140 divisors (see below), whose sum is σ = 126675796992. Its totient is φ = 14382878400.

The previous prime is 43377961103. The next prime is 43377961177. The reversal of 43377961104 is 40116977334.

It is a self number, because there is not a number n which added to its sum of digits gives 43377961104.

It is not an unprimeable number, because it can be changed into a prime (43377961103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2218089 + ... + 2237559.

Almost surely, 2^43377961104 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 43377961104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63337898496).

43377961104 is an abundant number, since it is smaller than the sum of its proper divisors (83297835888).

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

43377961104 is a wasteful number, since it uses less digits than its factorization.

43377961104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19688 (or 19667 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 43377961104 in words is "forty-three billion, three hundred seventy-seven million, nine hundred sixty-one thousand, one hundred four".