275804476397 has 2 divisors, whose sum is σ = 275804476398. Its totient is φ = 275804476396.

The previous prime is 275804476351. The next prime is 275804476421. The reversal of 275804476397 is 793674408572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196125865321 + 79678611076 = 442861^2 + 282274^2 .

It is a cyclic number.

It is not a de Polignac number, because 275804476397 - 2¹² = 275804472301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275804476697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137902238198 + 137902238199.

It is an arithmetic number, because the mean of its divisors is an integer number (137902238199).

Almost surely, 2^275804476397 is an apocalyptic number.

It is an amenable number.

275804476397 is a deficient number, since it is larger than the sum of its proper divisors (1).

275804476397 is an equidigital number, since it uses as much as digits as its factorization.

275804476397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71124480, while the sum is 62.

The spelling of 275804476397 in words is "two hundred seventy-five billion, eight hundred four million, four hundred seventy-six thousand, three hundred ninety-seven".