126626722979 has 2 divisors, whose sum is σ = 126626722980. Its totient is φ = 126626722978.

The previous prime is 126626722921. The next prime is 126626723023. The reversal of 126626722979 is 979227626621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126626722979 is a prime.

It is not a weakly prime, because it can be changed into another prime (126626722279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63313361489 + 63313361490.

It is an arithmetic number, because the mean of its divisors is an integer number (63313361490).

Almost surely, 2^126626722979 is an apocalyptic number.

126626722979 is a deficient number, since it is larger than the sum of its proper divisors (1).

126626722979 is an equidigital number, since it uses as much as digits as its factorization.

126626722979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13716864, while the sum is 59.

The spelling of 126626722979 in words is "one hundred twenty-six billion, six hundred twenty-six million, seven hundred twenty-two thousand, nine hundred seventy-nine".