4358729512872 has 144 divisors (see below), whose sum is σ = 13920335257140. Its totient is φ = 1228291610112.

The previous prime is 4358729512871. The next prime is 4358729512889. The reversal of 4358729512872 is 2782159278534.

4358729512872 is a `hidden beast` number, since 4 + 3 + 587 + 29 + 5 + 1 + 28 + 7 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4198622294916 + 160107217956 = 2049054^2 + 400134^2 .

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (4358729512871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8204563 + ... + 8719650.

Almost surely, 2^{4358729512872} is an apocalyptic number.

4358729512872 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

4358729512872 is an abundant number, since it is smaller than the sum of its proper divisors (9561605744268).

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

4358729512872 is a wasteful number, since it uses less digits than its factorization.

4358729512872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16924312 (or 16924298 counting only the distinct ones).

The product of its digits is 67737600, while the sum is 63.

The spelling of 4358729512872 in words is "four trillion, three hundred fifty-eight billion, seven hundred twenty-nine million, five hundred twelve thousand, eight hundred seventy-two".