274878955499 has 2 divisors, whose sum is σ = 274878955500. Its totient is φ = 274878955498.

The previous prime is 274878955487. The next prime is 274878955537. The reversal of 274878955499 is 994559878472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 274878955499 - 2¹⁶ = 274878889963 is a prime.

It is not a weakly prime, because it can be changed into another prime (274878951499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137439477749 + 137439477750.

It is an arithmetic number, because the mean of its divisors is an integer number (137439477750).

Almost surely, 2^274878955499 is an apocalyptic number.

274878955499 is a deficient number, since it is larger than the sum of its proper divisors (1).

274878955499 is an equidigital number, since it uses as much as digits as its factorization.

274878955499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1828915200, while the sum is 77.

The spelling of 274878955499 in words is "two hundred seventy-four billion, eight hundred seventy-eight million, nine hundred fifty-five thousand, four hundred ninety-nine".