1634027362221 has 4 divisors (see below), whose sum is σ = 2178703149632. Its totient is φ = 1089351574812.

The previous prime is 1634027362181. The next prime is 1634027362283. The reversal of 1634027362221 is 1222637204361.

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 not a de Polignac number, because 1634027362221 - 2⁹ = 1634027361709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1634027362221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1634027362291) 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, 272337893701 + ... + 272337893706.

It is an arithmetic number, because the mean of its divisors is an integer number (544675787408).

Almost surely, 2^{1634027362221} is an apocalyptic number.

It is an amenable number.

1634027362221 is a deficient number, since it is larger than the sum of its proper divisors (544675787411).

1634027362221 is an equidigital number, since it uses as much as digits as its factorization.

1634027362221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544675787410.

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 1634027362221 in words is "one trillion, six hundred thirty-four billion, twenty-seven million, three hundred sixty-two thousand, two hundred twenty-one".