7044748981 has 4 divisors (see below), whose sum is σ = 7044934732. Its totient is φ = 7044563232.

The previous prime is 7044748973. The next prime is 7044748993. The reversal of 7044748981 is 1898474407.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1104964081 + 5939784900 = 33241^2 + 77070^2 .

It is a cyclic number.

It is not a de Polignac number, because 7044748981 - 2³ = 7044748973 is a prime.

It is a super-2 number, since 2×7044748981² = 99256976410601076722, which 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 (7044742981) 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 3 ways as a sum of consecutive naturals, for example, 13206 + ... + 119431.

It is an arithmetic number, because the mean of its divisors is an integer number (1761233683).

Almost surely, 2^7044748981 is an apocalyptic number.

It is an amenable number.

7044748981 is a deficient number, since it is larger than the sum of its proper divisors (185751).

7044748981 is a wasteful number, since it uses less digits than its factorization.

7044748981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185750.

The product of its (nonzero) digits is 1806336, while the sum is 52.

The square root of 7044748981 is about 83933.0029309091. The cubic root of 7044748981 is about 1916.9987997816.

The spelling of 7044748981 in words is "seven billion, forty-four million, seven hundred forty-eight thousand, nine hundred eighty-one".