42983769791 has 4 divisors (see below), whose sum is σ = 42984701784. Its totient is φ = 42982837800.

The previous prime is 42983769739. The next prime is 42983769821. The reversal of 42983769791 is 19796738924.

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-42983769791 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 (42983769701) 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, 393005 + ... + 490326.

It is an arithmetic number, because the mean of its divisors is an integer number (10746175446).

Almost surely, 2^42983769791 is an apocalyptic number.

42983769791 is a deficient number, since it is larger than the sum of its proper divisors (931993).

42983769791 is an equidigital number, since it uses as much as digits as its factorization.

42983769791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931992.

The product of its digits is 41150592, while the sum is 65.

The spelling of 42983769791 in words is "forty-two billion, nine hundred eighty-three million, seven hundred sixty-nine thousand, seven hundred ninety-one".