42917865450 has 96 divisors (see below), whose sum is σ = 111183062400. Its totient is φ = 10935429120.

The previous prime is 42917865449. The next prime is 42917865493. The reversal of 42917865450 is 5456871924.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42917865393 and 42917865402.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3474886 + ... + 3487214.

It is an arithmetic number, because the mean of its divisors is an integer number (1158156900).

Almost surely, 2^42917865450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42917865450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55591531200).

42917865450 is an abundant number, since it is smaller than the sum of its proper divisors (68265196950).

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

42917865450 is a wasteful number, since it uses less digits than its factorization.

42917865450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13376 (or 13371 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 42917865450 in words is "forty-two billion, nine hundred seventeen million, eight hundred sixty-five thousand, four hundred fifty".