1226916901739 has 2 divisors, whose sum is σ = 1226916901740. Its totient is φ = 1226916901738.

The previous prime is 1226916901681. The next prime is 1226916901787. The reversal of 1226916901739 is 9371096196221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1226916901739 is a prime.

It is not a weakly prime, because it can be changed into another prime (1226916901339) 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, 613458450869 + 613458450870.

It is an arithmetic number, because the mean of its divisors is an integer number (613458450870).

Almost surely, 2^{1226916901739} is an apocalyptic number.

1226916901739 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226916901739 is an equidigital number, since it uses as much as digits as its factorization.

1226916901739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2204496, while the sum is 56.

The spelling of 1226916901739 in words is "one trillion, two hundred twenty-six billion, nine hundred sixteen million, nine hundred one thousand, seven hundred thirty-nine".