38452733221 has 32 divisors (see below), whose sum is σ = 44932659200. Its totient is φ = 32229731520.

The previous prime is 38452733167. The next prime is 38452733233. The reversal of 38452733221 is 12233725483.

It is not a de Polignac number, because 38452733221 - 2¹⁵ = 38452700453 is a prime.

It is a super-2 number, since 2×38452733221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38452733521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29784586 + ... + 29785876.

It is an arithmetic number, because the mean of its divisors is an integer number (1404145600).

Almost surely, 2^38452733221 is an apocalyptic number.

It is an amenable number.

38452733221 is a deficient number, since it is larger than the sum of its proper divisors (6479925979).

38452733221 is a wasteful number, since it uses less digits than its factorization.

38452733221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889.

The product of its digits is 241920, while the sum is 40.

The spelling of 38452733221 in words is "thirty-eight billion, four hundred fifty-two million, seven hundred thirty-three thousand, two hundred twenty-one".