42811955051 has 2 divisors, whose sum is σ = 42811955052. Its totient is φ = 42811955050.

The previous prime is 42811955033. The next prime is 42811955059. The reversal of 42811955051 is 15055911824.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42811955051 is a prime.

It is not a weakly prime, because it can be changed into another prime (42811955059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21405977525 + 21405977526.

It is an arithmetic number, because the mean of its divisors is an integer number (21405977526).

Almost surely, 2^42811955051 is an apocalyptic number.

42811955051 is a deficient number, since it is larger than the sum of its proper divisors (1).

42811955051 is an equidigital number, since it uses as much as digits as its factorization.

42811955051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 41.

The spelling of 42811955051 in words is "forty-two billion, eight hundred eleven million, nine hundred fifty-five thousand, fifty-one".