43450669780 has 96 divisors (see below), whose sum is σ = 105127626240. Its totient is φ = 14776819200.

The previous prime is 43450669763. The next prime is 43450669853. The reversal of 43450669780 is 8796605434.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21413806 + ... + 21415834.

It is an arithmetic number, because the mean of its divisors is an integer number (1095079440).

Almost surely, 2^43450669780 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 43450669780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52563813120).

43450669780 is an abundant number, since it is smaller than the sum of its proper divisors (61676956460).

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

43450669780 is a wasteful number, since it uses less digits than its factorization.

43450669780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3209 (or 3207 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 43450669780 in words is "forty-three billion, four hundred fifty million, six hundred sixty-nine thousand, seven hundred eighty".