274728728943 has 32 divisors (see below), whose sum is σ = 412392038400. Its totient is φ = 182991684600.

The previous prime is 274728728933. The next prime is 274728728957. The reversal of 274728728943 is 349827827472.

It is a happy number.

274728728943 is a `hidden beast` number, since 2 + 7 + 472 + 8 + 72 + 8 + 94 + 3 = 666.

It is not a de Polignac number, because 274728728943 - 2³⁰ = 273654987119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274728728933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2462668 + ... + 2571806.

It is an arithmetic number, because the mean of its divisors is an integer number (12887251200).

Almost surely, 2^274728728943 is an apocalyptic number.

274728728943 is a deficient number, since it is larger than the sum of its proper divisors (137663309457).

274728728943 is an equidigital number, since it uses as much as digits as its factorization.

274728728943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110311 (or 110293 counting only the distinct ones).

The product of its digits is 75866112, while the sum is 63.

The spelling of 274728728943 in words is "two hundred seventy-four billion, seven hundred twenty-eight million, seven hundred twenty-eight thousand, nine hundred forty-three".