70761619913 has 2 divisors, whose sum is σ = 70761619914. Its totient is φ = 70761619912.

The previous prime is 70761619891. The next prime is 70761620009. The reversal of 70761619913 is 31991616707.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49456422544 + 21305197369 = 222388^2 + 145963^2 .

It is a cyclic number.

It is not a de Polignac number, because 70761619913 - 2¹² = 70761615817 is a prime.

It is not a weakly prime, because it can be changed into another prime (70761619613) 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, 35380809956 + 35380809957.

It is an arithmetic number, because the mean of its divisors is an integer number (35380809957).

Almost surely, 2^70761619913 is an apocalyptic number.

It is an amenable number.

70761619913 is a deficient number, since it is larger than the sum of its proper divisors (1).

70761619913 is an equidigital number, since it uses as much as digits as its factorization.

70761619913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 428652, while the sum is 50.

The spelling of 70761619913 in words is "seventy billion, seven hundred sixty-one million, six hundred nineteen thousand, nine hundred thirteen".