70403339561 has 2 divisors, whose sum is σ = 70403339562. Its totient is φ = 70403339560.

The previous prime is 70403339509. The next prime is 70403339569. The reversal of 70403339561 is 16593330407.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58813525225 + 11589814336 = 242515^2 + 107656^2 .

It is a cyclic number.

It is not a de Polignac number, because 70403339561 - 2⁶ = 70403339497 is a prime.

It is not a weakly prime, because it can be changed into another prime (70403339569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35201669780 + 35201669781.

It is an arithmetic number, because the mean of its divisors is an integer number (35201669781).

Almost surely, 2^70403339561 is an apocalyptic number.

It is an amenable number.

70403339561 is a deficient number, since it is larger than the sum of its proper divisors (1).

70403339561 is an equidigital number, since it uses as much as digits as its factorization.

70403339561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 41.

Adding to 70403339561 its reverse (16593330407), we get a palindrome (86996669968).

The spelling of 70403339561 in words is "seventy billion, four hundred three million, three hundred thirty-nine thousand, five hundred sixty-one".