42615529811 has 2 divisors, whose sum is σ = 42615529812. Its totient is φ = 42615529810.

The previous prime is 42615529763. The next prime is 42615529861. The reversal of 42615529811 is 11892551624.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42615529811 is a prime.

It is not a weakly prime, because it can be changed into another prime (42615529861) 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 as a sum of consecutive naturals, namely, 21307764905 + 21307764906.

It is an arithmetic number, because the mean of its divisors is an integer number (21307764906).

Almost surely, 2^42615529811 is an apocalyptic number.

42615529811 is a deficient number, since it is larger than the sum of its proper divisors (1).

42615529811 is an equidigital number, since it uses as much as digits as its factorization.

42615529811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 44.

The spelling of 42615529811 in words is "forty-two billion, six hundred fifteen million, five hundred twenty-nine thousand, eight hundred eleven".