4813994961 has 12 divisors (see below), whose sum is σ = 6954249588. Its totient is φ = 3209006304.

The previous prime is 4813994909. The next prime is 4813994963. The reversal of 4813994961 is 1694993184.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4637610000 + 176384961 = 68100^2 + 13281^2 .

It is not a de Polignac number, because 4813994961 - 2⁷ = 4813994833 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4813994898 and 4813994907.

It is not an unprimeable number, because it can be changed into a prime (4813994963) 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, 97411 + ... + 138263.

It is an arithmetic number, because the mean of its divisors is an integer number (579520799).

Almost surely, 2^4813994961 is an apocalyptic number.

It is an amenable number.

4813994961 is a deficient number, since it is larger than the sum of its proper divisors (2140254627).

4813994961 is a wasteful number, since it uses less digits than its factorization.

4813994961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53952 (or 53949 counting only the distinct ones).

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

The square root of 4813994961 is about 69382.9587218648. The cubic root of 4813994961 is about 1688.5031575493.

The spelling of 4813994961 in words is "four billion, eight hundred thirteen million, nine hundred ninety-four thousand, nine hundred sixty-one".