70426640648629 has 2 divisors, whose sum is σ = 70426640648630. Its totient is φ = 70426640648628.

The previous prime is 70426640648597. The next prime is 70426640648677. The reversal of 70426640648629 is 92684604662407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40349149001604 + 30077491647025 = 6352098^2 + 5484295^2 .

It is a cyclic number.

It is not a de Polignac number, because 70426640648629 - 2⁵ = 70426640648597 is a prime.

It is a super-2 number, since 2×70426640648629² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70426640648699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35213320324314 + 35213320324315.

It is an arithmetic number, because the mean of its divisors is an integer number (35213320324315).

Almost surely, 2^{70426640648629} is an apocalyptic number.

It is an amenable number.

70426640648629 is a deficient number, since it is larger than the sum of its proper divisors (1).

70426640648629 is an equidigital number, since it uses as much as digits as its factorization.

70426640648629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 167215104, while the sum is 64.

The spelling of 70426640648629 in words is "seventy trillion, four hundred twenty-six billion, six hundred forty million, six hundred forty-eight thousand, six hundred twenty-nine".