70661827799 has 2 divisors, whose sum is σ = 70661827800. Its totient is φ = 70661827798.

The previous prime is 70661827787. The next prime is 70661827801. The reversal of 70661827799 is 99772816607.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70661827799 - 2⁸ = 70661827543 is a prime.

Together with 70661827801, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70661827729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35330913899 + 35330913900.

It is an arithmetic number, because the mean of its divisors is an integer number (35330913900).

Almost surely, 2^70661827799 is an apocalyptic number.

70661827799 is a deficient number, since it is larger than the sum of its proper divisors (1).

70661827799 is an equidigital number, since it uses as much as digits as its factorization.

70661827799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16003008, while the sum is 62.

The spelling of 70661827799 in words is "seventy billion, six hundred sixty-one million, eight hundred twenty-seven thousand, seven hundred ninety-nine".