69757991663 has 2 divisors, whose sum is σ = 69757991664. Its totient is φ = 69757991662.

The previous prime is 69757991659. The next prime is 69757991713. The reversal of 69757991663 is 36619975796.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 69757991663 - 2² = 69757991659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 69757991593 and 69757991602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69757996663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34878995831 + 34878995832.

It is an arithmetic number, because the mean of its divisors is an integer number (34878995832).

Almost surely, 2^69757991663 is an apocalyptic number.

69757991663 is a deficient number, since it is larger than the sum of its proper divisors (1).

69757991663 is an equidigital number, since it uses as much as digits as its factorization.

69757991663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 115736040, while the sum is 68.

The spelling of 69757991663 in words is "sixty-nine billion, seven hundred fifty-seven million, nine hundred ninety-one thousand, six hundred sixty-three".