5481861013 has 4 divisors (see below), whose sum is σ = 5510562048. Its totient is φ = 5453159980.

The previous prime is 5481860959. The next prime is 5481861043. The reversal of 5481861013 is 3101681845.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3101681845 = 5 ⋅620336369.

It is a cyclic number.

It is not a de Polignac number, because 5481861013 - 2²⁵ = 5448306581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5481861043) 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, 14350231 + ... + 14350612.

It is an arithmetic number, because the mean of its divisors is an integer number (1377640512).

Almost surely, 2^5481861013 is an apocalyptic number.

It is an amenable number.

5481861013 is a deficient number, since it is larger than the sum of its proper divisors (28701035).

5481861013 is a wasteful number, since it uses less digits than its factorization.

5481861013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28701034.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 5481861013 is about 74039.5908484103. The cubic root of 5481861013 is about 1763.2315170653.

The spelling of 5481861013 in words is "five billion, four hundred eighty-one million, eight hundred sixty-one thousand, thirteen".