321553053247677 has 8 divisors (see below), whose sum is σ = 428737488866016. Its totient is φ = 214368659897232.

The previous prime is 321553053247637. The next prime is 321553053247681. The reversal of 321553053247677 is 776742350355123.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 321553053247677 - 2¹⁰ = 321553053246653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 321553053247677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321553053247637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19012183 + ... + 31694939.

It is an arithmetic number, because the mean of its divisors is an integer number (53592186108252).

Almost surely, 2^{321553053247677} is an apocalyptic number.

It is an amenable number.

321553053247677 is a deficient number, since it is larger than the sum of its proper divisors (107184435618339).

321553053247677 is a wasteful number, since it uses less digits than its factorization.

321553053247677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21133947.

The product of its (nonzero) digits is 111132000, while the sum is 60.

The spelling of 321553053247677 in words is "three hundred twenty-one trillion, five hundred fifty-three billion, fifty-three million, two hundred forty-seven thousand, six hundred seventy-seven".