42512455093 has 2 divisors, whose sum is σ = 42512455094. Its totient is φ = 42512455092.

The previous prime is 42512455091. The next prime is 42512455123. The reversal of 42512455093 is 39055421524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41515285009 + 997170084 = 203753^2 + 31578^2 .

It is a cyclic number.

It is not a de Polignac number, because 42512455093 - 2¹ = 42512455091 is a prime.

Together with 42512455091, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42512455091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21256227546 + 21256227547.

It is an arithmetic number, because the mean of its divisors is an integer number (21256227547).

Almost surely, 2^42512455093 is an apocalyptic number.

It is an amenable number.

42512455093 is a deficient number, since it is larger than the sum of its proper divisors (1).

42512455093 is an equidigital number, since it uses as much as digits as its factorization.

42512455093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 42512455093 in words is "forty-two billion, five hundred twelve million, four hundred fifty-five thousand, ninety-three".