42351535540 has 12 divisors (see below), whose sum is σ = 88938224676. Its totient is φ = 16940614208.

The previous prime is 42351535531. The next prime is 42351535543. The reversal of 42351535540 is 4553515324.

42351535540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11091881124 + 31259654416 = 105318^2 + 176804^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42351535540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42351535543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1058788369 + ... + 1058788408.

It is an arithmetic number, because the mean of its divisors is an integer number (7411518723).

Almost surely, 2^42351535540 is an apocalyptic number.

It is an amenable number.

42351535540 is an abundant number, since it is smaller than the sum of its proper divisors (46586689136).

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

42351535540 is a wasteful number, since it uses less digits than its factorization.

42351535540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117576786 (or 2117576784 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 42351535540 in words is "forty-two billion, three hundred fifty-one million, five hundred thirty-five thousand, five hundred forty".