4434034071621 has 64 divisors (see below), whose sum is σ = 7387650017280. Its totient is φ = 2298152355840.

The previous prime is 4434034071617. The next prime is 4434034071637. The reversal of 4434034071621 is 1261704304344.

It is not a de Polignac number, because 4434034071621 - 2² = 4434034071617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4434034071621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4434034071121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 289552461 + ... + 289567773.

It is an arithmetic number, because the mean of its divisors is an integer number (115432031520).

Almost surely, 2^{4434034071621} is an apocalyptic number.

It is an amenable number.

4434034071621 is a deficient number, since it is larger than the sum of its proper divisors (2953615945659).

4434034071621 is a wasteful number, since it uses less digits than its factorization.

4434034071621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18106.

The product of its (nonzero) digits is 193536, while the sum is 39.

Adding to 4434034071621 its reverse (1261704304344), we get a palindrome (5695738375965).

The spelling of 4434034071621 in words is "four trillion, four hundred thirty-four billion, thirty-four million, seventy-one thousand, six hundred twenty-one".