873401675749 has 2 divisors, whose sum is σ = 873401675750. Its totient is φ = 873401675748.

The previous prime is 873401675743. The next prime is 873401675761. The reversal of 873401675749 is 947576104378.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 807694043524 + 65707632225 = 898718^2 + 256335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-873401675749 is a prime.

It is a super-2 number, since 2×873401675749² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (873401675743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436700837874 + 436700837875.

It is an arithmetic number, because the mean of its divisors is an integer number (436700837875).

Almost surely, 2^873401675749 is an apocalyptic number.

It is an amenable number.

873401675749 is a deficient number, since it is larger than the sum of its proper divisors (1).

873401675749 is an equidigital number, since it uses as much as digits as its factorization.

873401675749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35562240, while the sum is 61.

The spelling of 873401675749 in words is "eight hundred seventy-three billion, four hundred one million, six hundred seventy-five thousand, seven hundred forty-nine".