274730192821 has 6 divisors (see below), whose sum is σ = 319584101910. Its totient is φ = 235483022376.

The previous prime is 274730192791. The next prime is 274730192837. The reversal of 274730192821 is 128291037472.

It can be written as a sum of positive squares in only one way, i.e., 230256022500 + 44474170321 = 479850^2 + 210889^2 .

It is not a de Polignac number, because 274730192821 - 2³³ = 266140258229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274730112821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2803369266 + ... + 2803369363.

It is an arithmetic number, because the mean of its divisors is an integer number (53264016985).

Almost surely, 2^274730192821 is an apocalyptic number.

It is an amenable number.

274730192821 is a deficient number, since it is larger than the sum of its proper divisors (44853909089).

274730192821 is an equidigital number, since it uses as much as digits as its factorization.

274730192821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606738643 (or 5606738636 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 274730192821 in words is "two hundred seventy-four billion, seven hundred thirty million, one hundred ninety-two thousand, eight hundred twenty-one".