70012421057 has 2 divisors, whose sum is σ = 70012421058. Its totient is φ = 70012421056.

The previous prime is 70012421051. The next prime is 70012421069. The reversal of 70012421057 is 75012421007.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60338518321 + 9673902736 = 245639^2 + 98356^2 .

It is a cyclic number.

It is not a de Polignac number, because 70012421057 - 2²² = 70008226753 is a prime.

It is not a weakly prime, because it can be changed into another prime (70012421051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35006210528 + 35006210529.

It is an arithmetic number, because the mean of its divisors is an integer number (35006210529).

Almost surely, 2^70012421057 is an apocalyptic number.

It is an amenable number.

70012421057 is a deficient number, since it is larger than the sum of its proper divisors (1).

70012421057 is an equidigital number, since it uses as much as digits as its factorization.

70012421057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3920, while the sum is 29.

The spelling of 70012421057 in words is "seventy billion, twelve million, four hundred twenty-one thousand, fifty-seven".