2548274722181 has 2 divisors, whose sum is σ = 2548274722182. Its totient is φ = 2548274722180.

The previous prime is 2548274722153. The next prime is 2548274722229. The reversal of 2548274722181 is 1812274728452.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1347825799681 + 1200448922500 = 1160959^2 + 1095650^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2548274722181 is a prime.

It is a super-2 number, since 2×2548274722181² (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 (2548274722141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1274137361090 + 1274137361091.

It is an arithmetic number, because the mean of its divisors is an integer number (1274137361091).

Almost surely, 2^{2548274722181} is an apocalyptic number.

It is an amenable number.

2548274722181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2548274722181 is an equidigital number, since it uses as much as digits as its factorization.

2548274722181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4014080, while the sum is 53.

The spelling of 2548274722181 in words is "two trillion, five hundred forty-eight billion, two hundred seventy-four million, seven hundred twenty-two thousand, one hundred eighty-one".