42437000857 has 2 divisors, whose sum is σ = 42437000858. Its totient is φ = 42437000856.

The previous prime is 42437000849. The next prime is 42437000909. The reversal of 42437000857 is 75800073424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27666001561 + 14770999296 = 166331^2 + 121536^2 .

It is a cyclic number.

It is not a de Polignac number, because 42437000857 - 2³ = 42437000849 is a prime.

It is a weakly prime.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21218500428 + 21218500429.

It is an arithmetic number, because the mean of its divisors is an integer number (21218500429).

Almost surely, 2^42437000857 is an apocalyptic number.

It is an amenable number.

42437000857 is a deficient number, since it is larger than the sum of its proper divisors (1).

42437000857 is an equidigital number, since it uses as much as digits as its factorization.

42437000857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188160, while the sum is 40.

The spelling of 42437000857 in words is "forty-two billion, four hundred thirty-seven million, eight hundred fifty-seven", and thus it is an aban number.