42520354613 has 8 divisors (see below), whose sum is σ = 46387925760. Its totient is φ = 38653130880.

The previous prime is 42520354609. The next prime is 42520354621. The reversal of 42520354613 is 31645302524.

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

It is a cyclic number.

It is not a de Polignac number, because 42520354613 - 2² = 42520354609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42520354663) 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, 214556 + ... + 362042.

It is an arithmetic number, because the mean of its divisors is an integer number (5798490720).

Almost surely, 2^42520354613 is an apocalyptic number.

It is an amenable number.

42520354613 is a deficient number, since it is larger than the sum of its proper divisors (3867571147).

42520354613 is a wasteful number, since it uses less digits than its factorization.

42520354613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173707.

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 42520354613 in words is "forty-two billion, five hundred twenty million, three hundred fifty-four thousand, six hundred thirteen".