275780255819 has 2 divisors, whose sum is σ = 275780255820. Its totient is φ = 275780255818.

The previous prime is 275780255771. The next prime is 275780255827. The reversal of 275780255819 is 918552087572.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275780255819 is a prime.

It is a super-2 number, since 2×275780255819² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (275780255879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137890127909 + 137890127910.

It is an arithmetic number, because the mean of its divisors is an integer number (137890127910).

Almost surely, 2^275780255819 is an apocalyptic number.

275780255819 is a deficient number, since it is larger than the sum of its proper divisors (1).

275780255819 is an equidigital number, since it uses as much as digits as its factorization.

275780255819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112000, while the sum is 59.

The spelling of 275780255819 in words is "two hundred seventy-five billion, seven hundred eighty million, two hundred fifty-five thousand, eight hundred nineteen".