43012877680 has 20 divisors (see below), whose sum is σ = 100004940792. Its totient is φ = 17205151040.

The previous prime is 43012877651. The next prime is 43012877681. The reversal of 43012877680 is 8677821034.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 43012877680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43012877681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268830406 + ... + 268830565.

Almost surely, 2^43012877680 is an apocalyptic number.

43012877680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43012877680 is an abundant number, since it is smaller than the sum of its proper divisors (56992063112).

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

43012877680 is a wasteful number, since it uses less digits than its factorization.

43012877680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537660984 (or 537660978 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 43012877680 in words is "forty-three billion, twelve million, eight hundred seventy-seven thousand, six hundred eighty".