741865391261 has 2 divisors, whose sum is σ = 741865391262. Its totient is φ = 741865391260.

The previous prime is 741865391257. The next prime is 741865391273. The reversal of 741865391261 is 162193568147.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 501520328761 + 240345062500 = 708181^2 + 490250^2 .

It is a cyclic number.

It is not a de Polignac number, because 741865391261 - 2² = 741865391257 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (741865391221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370932695630 + 370932695631.

It is an arithmetic number, because the mean of its divisors is an integer number (370932695631).

Almost surely, 2^741865391261 is an apocalyptic number.

It is an amenable number.

741865391261 is a deficient number, since it is larger than the sum of its proper divisors (1).

741865391261 is an equidigital number, since it uses as much as digits as its factorization.

741865391261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 53.

The spelling of 741865391261 in words is "seven hundred forty-one billion, eight hundred sixty-five million, three hundred ninety-one thousand, two hundred sixty-one".