873662067749 has 2 divisors, whose sum is σ = 873662067750. Its totient is φ = 873662067748.

The previous prime is 873662067737. The next prime is 873662067809. The reversal of 873662067749 is 947760266378.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 626709722500 + 246952345249 = 791650^2 + 496943^2 .

It is a cyclic number.

It is not a de Polignac number, because 873662067749 - 2²⁰ = 873661019173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (873662267749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436831033874 + 436831033875.

It is an arithmetic number, because the mean of its divisors is an integer number (436831033875).

Almost surely, 2^873662067749 is an apocalyptic number.

It is an amenable number.

873662067749 is a deficient number, since it is larger than the sum of its proper divisors (1).

873662067749 is an equidigital number, since it uses as much as digits as its factorization.

873662067749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128024064, while the sum is 65.

The spelling of 873662067749 in words is "eight hundred seventy-three billion, six hundred sixty-two million, sixty-seven thousand, seven hundred forty-nine".