4913496981 has 12 divisors (see below), whose sum is σ = 7097900940. Its totient is φ = 3275375040.

The previous prime is 4913496971. The next prime is 4913497003. The reversal of 4913496981 is 1896943194.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3509496081 + 1404000900 = 59241^2 + 37470^2 .

It is not a de Polignac number, because 4913496981 - 2²² = 4909302677 is a prime.

It is a super-2 number, since 2×4913496981² = 48284905164592228722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4913496971) 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, 147711 + ... + 177891.

It is an arithmetic number, because the mean of its divisors is an integer number (591491745).

Almost surely, 2^4913496981 is an apocalyptic number.

It is an amenable number.

4913496981 is a deficient number, since it is larger than the sum of its proper divisors (2184403959).

4913496981 is a wasteful number, since it uses less digits than its factorization.

4913496981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48276 (or 48273 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The square root of 4913496981 is about 70096.3407104822. The cubic root of 4913496981 is about 1700.0573199819.

The spelling of 4913496981 in words is "four billion, nine hundred thirteen million, four hundred ninety-six thousand, nine hundred eighty-one".