42120540546 has 32 divisors (see below), whose sum is σ = 96291461760. Its totient is φ = 12032447616.

The previous prime is 42120540541. The next prime is 42120540563. The reversal of 42120540546 is 64504502124.

It is not an unprimeable number, because it can be changed into a prime (42120540541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183750 + ... + 343518.

It is an arithmetic number, because the mean of its divisors is an integer number (3009108180).

Almost surely, 2^42120540546 is an apocalyptic number.

42120540546 is an abundant number, since it is smaller than the sum of its proper divisors (54170921214).

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

42120540546 is a wasteful number, since it uses less digits than its factorization.

42120540546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166058.

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 42120540546 in words is "forty-two billion, one hundred twenty million, five hundred forty thousand, five hundred forty-six".