42541554205 has 16 divisors (see below), whose sum is σ = 55916691120. Its totient is φ = 30926758912.

The previous prime is 42541554161. The next prime is 42541554221. The reversal of 42541554205 is 50245514524.

It can be written as a sum of positive squares in 8 ways, for example, as 53626329 + 42487927876 = 7323^2 + 206126^2 .

It is a cyclic number.

It is not a de Polignac number, because 42541554205 - 2¹⁵ = 42541521437 is a prime.

It is a congruent 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, 8626654 + ... + 8631583.

It is an arithmetic number, because the mean of its divisors is an integer number (3494793195).

Almost surely, 2^42541554205 is an apocalyptic number.

It is an amenable number.

42541554205 is a deficient number, since it is larger than the sum of its proper divisors (13375136915).

42541554205 is a wasteful number, since it uses less digits than its factorization.

42541554205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17258288.

The product of its (nonzero) digits is 160000, while the sum is 37.

The spelling of 42541554205 in words is "forty-two billion, five hundred forty-one million, five hundred fifty-four thousand, two hundred five".