6529940650979 has 2 divisors, whose sum is σ = 6529940650980. Its totient is φ = 6529940650978.

The previous prime is 6529940650907. The next prime is 6529940651021. The reversal of 6529940650979 is 9790560499256.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6529940650979 is a prime.

It is not a weakly prime, because it can be changed into another prime (6529940650379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3264970325489 + 3264970325490.

It is an arithmetic number, because the mean of its divisors is an integer number (3264970325490).

Almost surely, 2^{6529940650979} is an apocalyptic number.

6529940650979 is a deficient number, since it is larger than the sum of its proper divisors (1).

6529940650979 is an equidigital number, since it uses as much as digits as its factorization.

6529940650979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 330674400, while the sum is 71.

The spelling of 6529940650979 in words is "six trillion, five hundred twenty-nine billion, nine hundred forty million, six hundred fifty thousand, nine hundred seventy-nine".