1400126726261 has 2 divisors, whose sum is σ = 1400126726262. Its totient is φ = 1400126726260.

The previous prime is 1400126726209. The next prime is 1400126726279. The reversal of 1400126726261 is 1626276210041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1009040340100 + 391086386161 = 1004510^2 + 625369^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400126726261 - 2⁶ = 1400126726197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400126776261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700063363130 + 700063363131.

It is an arithmetic number, because the mean of its divisors is an integer number (700063363131).

Almost surely, 2^{1400126726261} is an apocalyptic number.

It is an amenable number.

1400126726261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400126726261 is an equidigital number, since it uses as much as digits as its factorization.

1400126726261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 1400126726261 in words is "one trillion, four hundred billion, one hundred twenty-six million, seven hundred twenty-six thousand, two hundred sixty-one".