42506053646 has 16 divisors (see below), whose sum is σ = 72923994240. Its totient is φ = 18202761720.

The previous prime is 42506053643. The next prime is 42506053663. The reversal of 42506053646 is 64635060524.

It is a happy number.

42506053646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42506053643) 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, 1157816 + ... + 1193963.

It is an arithmetic number, because the mean of its divisors is an integer number (4557749640).

Almost surely, 2^42506053646 is an apocalyptic number.

42506053646 is a deficient number, since it is larger than the sum of its proper divisors (30417940594).

42506053646 is a wasteful number, since it uses less digits than its factorization.

42506053646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353079.

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 42506053646 in words is "forty-two billion, five hundred six million, fifty-three thousand, six hundred forty-six".