70197940061 has 2 divisors, whose sum is σ = 70197940062. Its totient is φ = 70197940060.

The previous prime is 70197940031. The next prime is 70197940069. The reversal of 70197940061 is 16004979107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62497000036 + 7700940025 = 249994^2 + 87755^2 .

It is a cyclic number.

It is not a de Polignac number, because 70197940061 - 2⁶ = 70197939997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70197939994 and 70197940021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70197940069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35098970030 + 35098970031.

It is an arithmetic number, because the mean of its divisors is an integer number (35098970031).

Almost surely, 2^70197940061 is an apocalyptic number.

It is an amenable number.

70197940061 is a deficient number, since it is larger than the sum of its proper divisors (1).

70197940061 is an equidigital number, since it uses as much as digits as its factorization.

70197940061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256, while the sum is 44.

The spelling of 70197940061 in words is "seventy billion, one hundred ninety-seven million, nine hundred forty thousand, sixty-one".