42454543440 has 40 divisors (see below), whose sum is σ = 131609085408. Its totient is φ = 11321211520.

The previous prime is 42454543433. The next prime is 42454543457. The reversal of 42454543440 is 4434545424.

42454543440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 88446726 + ... + 88447205.

Almost surely, 2^42454543440 is an apocalyptic number.

42454543440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42454543440 is an abundant number, since it is smaller than the sum of its proper divisors (89154541968).

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

42454543440 is a wasteful number, since it uses less digits than its factorization.

42454543440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176893947 (or 176893941 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 39.

The spelling of 42454543440 in words is "forty-two billion, four hundred fifty-four million, five hundred forty-three thousand, four hundred forty".