70421311577 has 2 divisors, whose sum is σ = 70421311578. Its totient is φ = 70421311576.

The previous prime is 70421311537. The next prime is 70421311601. The reversal of 70421311577 is 77511312407.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69989877136 + 431434441 = 264556^2 + 20771^2 .

It is an emirp because it is prime and its reverse (77511312407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70421311577 - 2²⁶ = 70354202713 is a prime.

It is a super-2 number, since 2×70421311577² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70421311577.

It is not a weakly prime, because it can be changed into another prime (70421311537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35210655788 + 35210655789.

It is an arithmetic number, because the mean of its divisors is an integer number (35210655789).

Almost surely, 2^70421311577 is an apocalyptic number.

It is an amenable number.

70421311577 is a deficient number, since it is larger than the sum of its proper divisors (1).

70421311577 is an equidigital number, since it uses as much as digits as its factorization.

70421311577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41160, while the sum is 38.

The spelling of 70421311577 in words is "seventy billion, four hundred twenty-one million, three hundred eleven thousand, five hundred seventy-seven".