42645000448 has 72 divisors (see below), whose sum is σ = 87812365760. Its totient is φ = 20659415040.

The previous prime is 42645000443. The next prime is 42645000451. The reversal of 42645000448 is 84400054624.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42645000443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025893 + ... + 1066651.

Almost surely, 2^42645000448 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 42645000448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43906182880).

42645000448 is an abundant number, since it is smaller than the sum of its proper divisors (45167365312).

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

42645000448 is an equidigital number, since it uses as much as digits as its factorization.

42645000448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40903 (or 40889 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 37.

The spelling of 42645000448 in words is "forty-two billion, six hundred forty-five million, four hundred forty-eight", and thus it is an aban number.