1740400673261 has 2 divisors, whose sum is σ = 1740400673262. Its totient is φ = 1740400673260.

The previous prime is 1740400673183. The next prime is 1740400673287. The reversal of 1740400673261 is 1623760040471.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1179354732361 + 561045940900 = 1085981^2 + 749030^2 .

It is a cyclic number.

It is not a de Polignac number, because 1740400673261 - 2³⁰ = 1739326931437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1740400675261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 870200336630 + 870200336631.

It is an arithmetic number, because the mean of its divisors is an integer number (870200336631).

Almost surely, 2^{1740400673261} is an apocalyptic number.

It is an amenable number.

1740400673261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1740400673261 is an equidigital number, since it uses as much as digits as its factorization.

1740400673261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 1740400673261 in words is "one trillion, seven hundred forty billion, four hundred million, six hundred seventy-three thousand, two hundred sixty-one".