4444992139225 has 27 divisors (see below), whose sum is σ = 6058572130429. Its totient is φ = 3232637223200.

The previous prime is 4444992139207. The next prime is 4444992139249. The reversal of 4444992139225 is 5229312994444.

The square root of 4444992139225 is 2108315.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 7835259289 + 4437156879936 = 88517^2 + 2106456^2 .

It is not a de Polignac number, because 4444992139225 - 2¹³ = 4444992131033 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 4444992139225.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 115938159 + ... + 115976491.

Almost surely, 2^{4444992139225} is an apocalyptic number.

4444992139225 is the 2108315-th square number.

4444992139225 is the 1054158-th centered octagonal number.

It is an amenable number.

4444992139225 is a deficient number, since it is larger than the sum of its proper divisors (1613579991204).

4444992139225 is an frugal number, since it uses more digits than its factorization.

4444992139225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76698 (or 38349 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 58.

The spelling of 4444992139225 in words is "four trillion, four hundred forty-four billion, nine hundred ninety-two million, one hundred thirty-nine thousand, two hundred twenty-five".