70260775657 has 2 divisors, whose sum is σ = 70260775658. Its totient is φ = 70260775656.

The previous prime is 70260775639. The next prime is 70260775693. The reversal of 70260775657 is 75657706207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69913176921 + 347598736 = 264411^2 + 18644^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70260775657 is a prime.

It is not a weakly prime, because it can be changed into another prime (70260775457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35130387828 + 35130387829.

It is an arithmetic number, because the mean of its divisors is an integer number (35130387829).

Almost surely, 2^70260775657 is an apocalyptic number.

It is an amenable number.

70260775657 is a deficient number, since it is larger than the sum of its proper divisors (1).

70260775657 is an equidigital number, since it uses as much as digits as its factorization.

70260775657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4321800, while the sum is 52.

The spelling of 70260775657 in words is "seventy billion, two hundred sixty million, seven hundred seventy-five thousand, six hundred fifty-seven".