42667121473 has 2 divisors, whose sum is σ = 42667121474. Its totient is φ = 42667121472.

The previous prime is 42667121437. The next prime is 42667121489. The reversal of 42667121473 is 37412176624.

42667121473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (42667121437) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41293084849 + 1374036624 = 203207^2 + 37068^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42667121473 is a prime.

It is not a weakly prime, because it can be changed into another prime (42667131473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21333560736 + 21333560737.

It is an arithmetic number, because the mean of its divisors is an integer number (21333560737).

Almost surely, 2^42667121473 is an apocalyptic number.

It is an amenable number.

42667121473 is a deficient number, since it is larger than the sum of its proper divisors (1).

42667121473 is an equidigital number, since it uses as much as digits as its factorization.

42667121473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 43.

The spelling of 42667121473 in words is "forty-two billion, six hundred sixty-seven million, one hundred twenty-one thousand, four hundred seventy-three".