42154333057 has 2 divisors, whose sum is σ = 42154333058. Its totient is φ = 42154333056.

The previous prime is 42154333049. The next prime is 42154333079. The reversal of 42154333057 is 75033345124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22733402176 + 19420930881 = 150776^2 + 139359^2 .

It is a cyclic number.

It is not a de Polignac number, because 42154333057 - 2³ = 42154333049 is a prime.

It is not a weakly prime, because it can be changed into another prime (42154333027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21077166528 + 21077166529.

It is an arithmetic number, because the mean of its divisors is an integer number (21077166529).

Almost surely, 2^42154333057 is an apocalyptic number.

It is an amenable number.

42154333057 is a deficient number, since it is larger than the sum of its proper divisors (1).

42154333057 is an equidigital number, since it uses as much as digits as its factorization.

42154333057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 37.

The spelling of 42154333057 in words is "forty-two billion, one hundred fifty-four million, three hundred thirty-three thousand, fifty-seven".