42576721303 has 4 divisors (see below), whose sum is σ = 43055111520. Its totient is φ = 42098331088.

The previous prime is 42576721283. The next prime is 42576721321. The reversal of 42576721303 is 30312767524.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42576721303 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 (42576721903) 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, 239194975 + ... + 239195152.

It is an arithmetic number, because the mean of its divisors is an integer number (10763777880).

Almost surely, 2^42576721303 is an apocalyptic number.

42576721303 is a deficient number, since it is larger than the sum of its proper divisors (478390217).

42576721303 is an equidigital number, since it uses as much as digits as its factorization.

42576721303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478390216.

The product of its (nonzero) digits is 211680, while the sum is 40.

The spelling of 42576721303 in words is "forty-two billion, five hundred seventy-six million, seven hundred twenty-one thousand, three hundred three".