42451545084 has 96 divisors (see below), whose sum is σ = 107838936576. Its totient is φ = 12919653120.

The previous prime is 42451545043. The next prime is 42451545089. The reversal of 42451545084 is 48054515424.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42451545089) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13301929 + ... + 13305119.

It is an arithmetic number, because the mean of its divisors is an integer number (1123322256).

Almost surely, 2^42451545084 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 42451545084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53919468288).

42451545084 is an abundant number, since it is smaller than the sum of its proper divisors (65387391492).

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

42451545084 is a wasteful number, since it uses less digits than its factorization.

42451545084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115 (or 4113 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 42.

The spelling of 42451545084 in words is "forty-two billion, four hundred fifty-one million, five hundred forty-five thousand, eighty-four".