126822142693 has 2 divisors, whose sum is σ = 126822142694. Its totient is φ = 126822142692.

The previous prime is 126822142661. The next prime is 126822142729. The reversal of 126822142693 is 396241228621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126816468769 + 5673924 = 356113^2 + 2382^2 .

It is a cyclic number.

It is not a de Polignac number, because 126822142693 - 2⁵ = 126822142661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126822142633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63411071346 + 63411071347.

It is an arithmetic number, because the mean of its divisors is an integer number (63411071347).

Almost surely, 2^126822142693 is an apocalyptic number.

It is an amenable number.

126822142693 is a deficient number, since it is larger than the sum of its proper divisors (1).

126822142693 is an equidigital number, since it uses as much as digits as its factorization.

126822142693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 46.

The spelling of 126822142693 in words is "one hundred twenty-six billion, eight hundred twenty-two million, one hundred forty-two thousand, six hundred ninety-three".