70627613261 has 2 divisors, whose sum is σ = 70627613262. Its totient is φ = 70627613260.

The previous prime is 70627613237. The next prime is 70627613267. The reversal of 70627613261 is 16231672607.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65111728900 + 5515884361 = 255170^2 + 74269^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70627613261 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70627613267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35313806630 + 35313806631.

It is an arithmetic number, because the mean of its divisors is an integer number (35313806631).

Almost surely, 2^70627613261 is an apocalyptic number.

It is an amenable number.

70627613261 is a deficient number, since it is larger than the sum of its proper divisors (1).

70627613261 is an equidigital number, since it uses as much as digits as its factorization.

70627613261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 41.

The spelling of 70627613261 in words is "seventy billion, six hundred twenty-seven million, six hundred thirteen thousand, two hundred sixty-one".