126981793319 has 2 divisors, whose sum is σ = 126981793320. Its totient is φ = 126981793318.

The previous prime is 126981793303. The next prime is 126981793361. The reversal of 126981793319 is 913397189621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126981793319 - 2⁴ = 126981793303 is a prime.

It is a super-2 number, since 2×126981793319² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126981793219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63490896659 + 63490896660.

It is an arithmetic number, because the mean of its divisors is an integer number (63490896660).

Almost surely, 2^126981793319 is an apocalyptic number.

126981793319 is a deficient number, since it is larger than the sum of its proper divisors (1).

126981793319 is an equidigital number, since it uses as much as digits as its factorization.

126981793319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 59.

The spelling of 126981793319 in words is "one hundred twenty-six billion, nine hundred eighty-one million, seven hundred ninety-three thousand, three hundred nineteen".