609274223921 has 4 divisors (see below), whose sum is σ = 664662789744. Its totient is φ = 553885658100.

The previous prime is 609274223917. The next prime is 609274223963. The reversal of 609274223921 is 129322472906.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 609274223921 - 2² = 609274223917 is a prime.

It is a super-2 number, since 2×609274223921² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (609274223981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27694282895 + ... + 27694282916.

It is an arithmetic number, because the mean of its divisors is an integer number (166165697436).

Almost surely, 2^609274223921 is an apocalyptic number.

It is an amenable number.

609274223921 is a deficient number, since it is larger than the sum of its proper divisors (55388565823).

609274223921 is a wasteful number, since it uses less digits than its factorization.

609274223921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55388565822.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 609274223921 in words is "six hundred nine billion, two hundred seventy-four million, two hundred twenty-three thousand, nine hundred twenty-one".