5123440061 has 12 divisors (see below), whose sum is σ = 5377756608. Its totient is φ = 4878844272.

The previous prime is 5123440051. The next prime is 5123440109. The reversal of 5123440061 is 1600443215.

It is a de Polignac number, because none of the positive numbers 2^k-5123440061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5123440061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5123440031) 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 11 ways as a sum of consecutive naturals, for example, 24530 + ... + 104156.

It is an arithmetic number, because the mean of its divisors is an integer number (448146384).

Almost surely, 2^5123440061 is an apocalyptic number.

It is an amenable number.

5123440061 is a deficient number, since it is larger than the sum of its proper divisors (254316547).

5123440061 is an equidigital number, since it uses as much as digits as its factorization.

5123440061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79748 (or 79711 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 5123440061 is about 71578.2094006269. The cubic root of 5123440061 is about 1723.9336753329.

Adding to 5123440061 its reverse (1600443215), we get a palindrome (6723883276).

The spelling of 5123440061 in words is "five billion, one hundred twenty-three million, four hundred forty thousand, sixty-one".