43780743408 has 20 divisors (see below), whose sum is σ = 113100253928. Its totient is φ = 14593581120.

The previous prime is 43780743353. The next prime is 43780743427. The reversal of 43780743408 is 80434708734.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 912098821 = 43780743408 / (4 + 3 + 7 + 8 + 0 + 7 + 4 + 3 + 4 + 0 + 8).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 456049363 + ... + 456049458.

Almost surely, 2^43780743408 is an apocalyptic number.

43780743408 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

43780743408 is an abundant number, since it is smaller than the sum of its proper divisors (69319510520).

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

43780743408 is a wasteful number, since it uses less digits than its factorization.

43780743408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912098832 (or 912098826 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 48.

The spelling of 43780743408 in words is "forty-three billion, seven hundred eighty million, seven hundred forty-three thousand, four hundred eight".