275155795949 has 2 divisors, whose sum is σ = 275155795950. Its totient is φ = 275155795948.

The previous prime is 275155795931. The next prime is 275155795997. The reversal of 275155795949 is 949597551572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245267610025 + 29888185924 = 495245^2 + 172882^2 .

It is a cyclic number.

It is not a de Polignac number, because 275155795949 - 2⁸ = 275155795693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275155795909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137577897974 + 137577897975.

It is an arithmetic number, because the mean of its divisors is an integer number (137577897975).

Almost surely, 2^275155795949 is an apocalyptic number.

It is an amenable number.

275155795949 is a deficient number, since it is larger than the sum of its proper divisors (1).

275155795949 is an equidigital number, since it uses as much as digits as its factorization.

275155795949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 178605000, while the sum is 68.

The spelling of 275155795949 in words is "two hundred seventy-five billion, one hundred fifty-five million, seven hundred ninety-five thousand, nine hundred forty-nine".