42549478522 has 16 divisors (see below), whose sum is σ = 68999156640. Its totient is φ = 19610285328.

The previous prime is 42549478501. The next prime is 42549478523. The reversal of 42549478522 is 22587494524.

It is a self number, because there is not a number n which added to its sum of digits gives 42549478522.

It is not an unprimeable number, because it can be changed into a prime (42549478523) 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, 15129988 + ... + 15132799.

It is an arithmetic number, because the mean of its divisors is an integer number (4312447290).

Almost surely, 2^42549478522 is an apocalyptic number.

42549478522 is a deficient number, since it is larger than the sum of its proper divisors (26449678118).

42549478522 is a wasteful number, since it uses less digits than its factorization.

42549478522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30262845.

The product of its digits is 6451200, while the sum is 52.

The spelling of 42549478522 in words is "forty-two billion, five hundred forty-nine million, four hundred seventy-eight thousand, five hundred twenty-two".