5618129972 has 24 divisors (see below), whose sum is σ = 12100588416. Its totient is φ = 2222556768.

The previous prime is 5618129971. The next prime is 5618130043. The reversal of 5618129972 is 2799218165.

It is a self number, because there is not a number n which added to its sum of digits gives 5618129972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5618129971) 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 7 ways as a sum of consecutive naturals, for example, 7716848 + ... + 7717575.

It is an arithmetic number, because the mean of its divisors is an integer number (504191184).

Almost surely, 2^5618129972 is an apocalyptic number.

5618129972 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

5618129972 is an abundant number, since it is smaller than the sum of its proper divisors (6482458444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5618129972 is a wasteful number, since it uses less digits than its factorization.

5618129972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15434447 (or 15434445 counting only the distinct ones).

The product of its digits is 544320, while the sum is 50.

The square root of 5618129972 is about 74954.1858204063. The cubic root of 5618129972 is about 1777.7223289401.

The spelling of 5618129972 in words is "five billion, six hundred eighteen million, one hundred twenty-nine thousand, nine hundred seventy-two".