70500774661 has 2 divisors, whose sum is σ = 70500774662. Its totient is φ = 70500774660.

The previous prime is 70500774611. The next prime is 70500774677. The reversal of 70500774661 is 16647700507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69957605025 + 543169636 = 264495^2 + 23306^2 .

It is a cyclic number.

It is not a de Polignac number, because 70500774661 - 2¹¹ = 70500772613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70500774601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35250387330 + 35250387331.

It is an arithmetic number, because the mean of its divisors is an integer number (35250387331).

Almost surely, 2^70500774661 is an apocalyptic number.

It is an amenable number.

70500774661 is a deficient number, since it is larger than the sum of its proper divisors (1).

70500774661 is an equidigital number, since it uses as much as digits as its factorization.

70500774661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 246960, while the sum is 43.

The spelling of 70500774661 in words is "seventy billion, five hundred million, seven hundred seventy-four thousand, six hundred sixty-one".