70574699621 has 2 divisors, whose sum is σ = 70574699622. Its totient is φ = 70574699620.

The previous prime is 70574699609. The next prime is 70574699647. The reversal of 70574699621 is 12699647507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67003322500 + 3571377121 = 258850^2 + 59761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70574699621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70574609621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35287349810 + 35287349811.

It is an arithmetic number, because the mean of its divisors is an integer number (35287349811).

Almost surely, 2^70574699621 is an apocalyptic number.

It is an amenable number.

70574699621 is a deficient number, since it is larger than the sum of its proper divisors (1).

70574699621 is an equidigital number, since it uses as much as digits as its factorization.

70574699621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5715360, while the sum is 56.

The spelling of 70574699621 in words is "seventy billion, five hundred seventy-four million, six hundred ninety-nine thousand, six hundred twenty-one".