42311005782473 has 2 divisors, whose sum is σ = 42311005782474. Its totient is φ = 42311005782472.

The previous prime is 42311005782469. The next prime is 42311005782497. The reversal of 42311005782473 is 37428750011324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32253278564809 + 10057727217664 = 5679197^2 + 3171392^2 .

It is a cyclic number.

It is not a de Polignac number, because 42311005782473 - 2² = 42311005782469 is a prime.

It is not a weakly prime, because it can be changed into another prime (42311005782413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21155502891236 + 21155502891237.

It is an arithmetic number, because the mean of its divisors is an integer number (21155502891237).

Almost surely, 2^{42311005782473} is an apocalyptic number.

It is an amenable number.

42311005782473 is a deficient number, since it is larger than the sum of its proper divisors (1).

42311005782473 is an equidigital number, since it uses as much as digits as its factorization.

42311005782473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 47.

Adding to 42311005782473 its reverse (37428750011324), we get a palindrome (79739755793797).

The spelling of 42311005782473 in words is "forty-two trillion, three hundred eleven billion, five million, seven hundred eighty-two thousand, four hundred seventy-three".