42646804442 has 32 divisors (see below), whose sum is σ = 72291139200. Its totient is φ = 18699577600.

The previous prime is 42646804441. The next prime is 42646804471. The reversal of 42646804442 is 24440864624.

It is a super-2 number, since 2×42646804442² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42646804393 and 42646804402.

It is not an unprimeable number, because it can be changed into a prime (42646804441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185342 + ... + 345897.

It is an arithmetic number, because the mean of its divisors is an integer number (2259098100).

Almost surely, 2^42646804442 is an apocalyptic number.

42646804442 is a deficient number, since it is larger than the sum of its proper divisors (29644334758).

42646804442 is a wasteful number, since it uses less digits than its factorization.

42646804442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531382.

The product of its (nonzero) digits is 1179648, while the sum is 44.

The spelling of 42646804442 in words is "forty-two billion, six hundred forty-six million, eight hundred four thousand, four hundred forty-two".