740555956691 has 2 divisors, whose sum is σ = 740555956692. Its totient is φ = 740555956690.

The previous prime is 740555956619. The next prime is 740555956733. The reversal of 740555956691 is 196659555047.

Together with previous prime (740555956619) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 740555956691 - 2¹⁴ = 740555940307 is a prime.

It is not a weakly prime, because it can be changed into another prime (740555956391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370277978345 + 370277978346.

It is an arithmetic number, because the mean of its divisors is an integer number (370277978346).

Almost surely, 2^740555956691 is an apocalyptic number.

740555956691 is a deficient number, since it is larger than the sum of its proper divisors (1).

740555956691 is an equidigital number, since it uses as much as digits as its factorization.

740555956691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51030000, while the sum is 62.

The spelling of 740555956691 in words is "seven hundred forty billion, five hundred fifty-five million, nine hundred fifty-six thousand, six hundred ninety-one".