42541805823 has 64 divisors (see below), whose sum is σ = 63514214400. Its totient is φ = 25113836160.

The previous prime is 42541805819. The next prime is 42541805837. The reversal of 42541805823 is 32850814524.

It is not a de Polignac number, because 42541805823 - 2² = 42541805819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42541805843) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 60002193 + ... + 60002901.

It is an arithmetic number, because the mean of its divisors is an integer number (992409600).

Almost surely, 2^42541805823 is an apocalyptic number.

42541805823 is a deficient number, since it is larger than the sum of its proper divisors (20972408577).

42541805823 is a wasteful number, since it uses less digits than its factorization.

42541805823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092.

The product of its (nonzero) digits is 307200, while the sum is 42.

The spelling of 42541805823 in words is "forty-two billion, five hundred forty-one million, eight hundred five thousand, eight hundred twenty-three".