70111036691 has 2 divisors, whose sum is σ = 70111036692. Its totient is φ = 70111036690.

The previous prime is 70111036577. The next prime is 70111036717. The reversal of 70111036691 is 19663011107.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70111036691 - 2¹⁰ = 70111035667 is a prime.

It is not a weakly prime, because it can be changed into another prime (70131036691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35055518345 + 35055518346.

It is an arithmetic number, because the mean of its divisors is an integer number (35055518346).

Almost surely, 2^70111036691 is an apocalyptic number.

70111036691 is a deficient number, since it is larger than the sum of its proper divisors (1).

70111036691 is an equidigital number, since it uses as much as digits as its factorization.

70111036691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 35.

Adding to 70111036691 its reverse (19663011107), we get a palindrome (89774047798).

The spelling of 70111036691 in words is "seventy billion, one hundred eleven million, thirty-six thousand, six hundred ninety-one".