5174454543781 has 2 divisors, whose sum is σ = 5174454543782. Its totient is φ = 5174454543780.

The previous prime is 5174454543773. The next prime is 5174454543823. The reversal of 5174454543781 is 1873454544715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4398390450756 + 776064093025 = 2097234^2 + 880945^2 .

It is a cyclic number.

It is not a de Polignac number, because 5174454543781 - 2³ = 5174454543773 is a prime.

It is a super-2 number, since 2×5174454543781² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5174454543721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2587227271890 + 2587227271891.

It is an arithmetic number, because the mean of its divisors is an integer number (2587227271891).

Almost surely, 2^{5174454543781} is an apocalyptic number.

It is an amenable number.

5174454543781 is a deficient number, since it is larger than the sum of its proper divisors (1).

5174454543781 is an equidigital number, since it uses as much as digits as its factorization.

5174454543781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632000, while the sum is 58.

The spelling of 5174454543781 in words is "five trillion, one hundred seventy-four billion, four hundred fifty-four million, five hundred forty-three thousand, seven hundred eighty-one".