42741582077 has 4 divisors (see below), whose sum is σ = 42786432540. Its totient is φ = 42696731616.

The previous prime is 42741582073. The next prime is 42741582127. The reversal of 42741582077 is 77028514724.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21016590841 + 21724991236 = 144971^2 + 147394^2 .

It is a cyclic number.

It is not a de Polignac number, because 42741582077 - 2² = 42741582073 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42741582071) 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, 22423802 + ... + 22425707.

It is an arithmetic number, because the mean of its divisors is an integer number (10696608135).

Almost surely, 2^42741582077 is an apocalyptic number.

It is an amenable number.

42741582077 is a deficient number, since it is larger than the sum of its proper divisors (44850463).

42741582077 is an equidigital number, since it uses as much as digits as its factorization.

42741582077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44850462.

The product of its (nonzero) digits is 878080, while the sum is 47.

The spelling of 42741582077 in words is "forty-two billion, seven hundred forty-one million, five hundred eighty-two thousand, seventy-seven".