42513747506 has 8 divisors (see below), whose sum is σ = 63903755520. Its totient is φ = 21212495668.

The previous prime is 42513747503. The next prime is 42513747517. The reversal of 42513747506 is 60574731524.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (42513747503) 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, 22187846 + ... + 22189761.

It is an arithmetic number, because the mean of its divisors is an integer number (7987969440).

Almost surely, 2^42513747506 is an apocalyptic number.

42513747506 is a deficient number, since it is larger than the sum of its proper divisors (21390008014).

42513747506 is a wasteful number, since it uses less digits than its factorization.

42513747506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44378088.

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 42513747506 in words is "forty-two billion, five hundred thirteen million, seven hundred forty-seven thousand, five hundred six".