4491979744461 has 12 divisors (see below), whose sum is σ = 6583287119136. Its totient is φ = 2722411966120.

The previous prime is 4491979744459. The next prime is 4491979744463. The reversal of 4491979744461 is 1644479791944.

It is an interprime number because it is at equal distance from previous prime (4491979744459) and next prime (4491979744463).

It is not a de Polignac number, because 4491979744461 - 2¹ = 4491979744459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4491979744463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6187299561 + ... + 6187300286.

It is an arithmetic number, because the mean of its divisors is an integer number (548607259928).

Almost surely, 2^{4491979744461} is an apocalyptic number.

It is an amenable number.

4491979744461 is a deficient number, since it is larger than the sum of its proper divisors (2091307374675).

4491979744461 is a wasteful number, since it uses less digits than its factorization.

4491979744461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12374599872 (or 12374599861 counting only the distinct ones).

The product of its digits is 219469824, while the sum is 69.

The spelling of 4491979744461 in words is "four trillion, four hundred ninety-one billion, nine hundred seventy-nine million, seven hundred forty-four thousand, four hundred sixty-one".