42447036880 has 40 divisors (see below), whose sum is σ = 98892099072. Its totient is φ = 16943935104.

The previous prime is 42447036829. The next prime is 42447036949. The reversal of 42447036880 is 8863074424.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 42447036880.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505792 + ... + 583711.

Almost surely, 2^42447036880 is an apocalyptic number.

42447036880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42447036880 is an abundant number, since it is smaller than the sum of its proper divisors (56445062192).

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

42447036880 is a wasteful number, since it uses less digits than its factorization.

42447036880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090003 (or 1089997 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 46.

The spelling of 42447036880 in words is "forty-two billion, four hundred forty-seven million, thirty-six thousand, eight hundred eighty".