42154650505 has 16 divisors (see below), whose sum is σ = 55190116224. Its totient is φ = 30654679680.

The previous prime is 42154650481. The next prime is 42154650511. The reversal of 42154650505 is 50505645124.

42154650505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42154650505 - 2¹⁵ = 42154617737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564517 + ... + 634813.

It is an arithmetic number, because the mean of its divisors is an integer number (3449382264).

Almost surely, 2^42154650505 is an apocalyptic number.

It is an amenable number.

42154650505 is a deficient number, since it is larger than the sum of its proper divisors (13035465719).

42154650505 is a wasteful number, since it uses less digits than its factorization.

42154650505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81216.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 42154650505 in words is "forty-two billion, one hundred fifty-four million, six hundred fifty thousand, five hundred five".