1042807589401 has 2 divisors, whose sum is σ = 1042807589402. Its totient is φ = 1042807589400.

The previous prime is 1042807589389. The next prime is 1042807589429. The reversal of 1042807589401 is 1049857082401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 613652889600 + 429154699801 = 783360^2 + 655099^2 .

It is an emirp because it is prime and its reverse (1049857082401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1042807589401 - 2⁷ = 1042807589273 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042807589501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521403794700 + 521403794701.

It is an arithmetic number, because the mean of its divisors is an integer number (521403794701).

Almost surely, 2^{1042807589401} is an apocalyptic number.

It is an amenable number.

1042807589401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042807589401 is an equidigital number, since it uses as much as digits as its factorization.

1042807589401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 1042807589401 in words is "one trillion, forty-two billion, eight hundred seven million, five hundred eighty-nine thousand, four hundred one".