42061870438099 has 2 divisors, whose sum is σ = 42061870438100. Its totient is φ = 42061870438098.

The previous prime is 42061870438043. The next prime is 42061870438121. The reversal of 42061870438099 is 99083407816024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42061870438099 - 2¹⁷ = 42061870307027 is a prime.

It is not a weakly prime, because it can be changed into another prime (42061870438199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21030935219049 + 21030935219050.

It is an arithmetic number, because the mean of its divisors is an integer number (21030935219050).

Almost surely, 2^{42061870438099} is an apocalyptic number.

42061870438099 is a deficient number, since it is larger than the sum of its proper divisors (1).

42061870438099 is an equidigital number, since it uses as much as digits as its factorization.

42061870438099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20901888, while the sum is 61.

The spelling of 42061870438099 in words is "forty-two trillion, sixty-one billion, eight hundred seventy million, four hundred thirty-eight thousand, ninety-nine".