42281003377 has 4 divisors (see below), whose sum is σ = 43423733236. Its totient is φ = 41138273520.

The previous prime is 42281003353. The next prime is 42281003389. The reversal of 42281003377 is 77330018224.

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 34967504016 + 7313499361 = 186996^2 + 85519^2 .

It is a cyclic number.

It is not a de Polignac number, because 42281003377 - 2⁷ = 42281003249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 1142729821 = 42281003377 / (4 + 2 + 2 + 8 + 1 + 0 + 0 + 3 + 3 + 7 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42281006377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571364874 + ... + 571364947.

It is an arithmetic number, because the mean of its divisors is an integer number (10855933309).

Almost surely, 2^42281003377 is an apocalyptic number.

It is an amenable number.

42281003377 is a deficient number, since it is larger than the sum of its proper divisors (1142729859).

42281003377 is a wasteful number, since it uses less digits than its factorization.

42281003377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142729858.

The product of its (nonzero) digits is 56448, while the sum is 37.

The spelling of 42281003377 in words is "forty-two billion, two hundred eighty-one million, three thousand, three hundred seventy-seven".