647226153800 has 108 divisors (see below), whose sum is σ = 1518440147595. Its totient is φ = 256564920960.

The previous prime is 647226153797. The next prime is 647226153829. The reversal of 647226153800 is 8351622746.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 388924355044 + 258301798756 = 623638^2 + 508234^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=568870.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1854516026 + ... + 1854516374.

Almost surely, 2^647226153800 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 647226153800

647226153800 is an abundant number, since it is smaller than the sum of its proper divisors (871213993795).

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

647226153800 is an equidigital number, since it uses as much as digits as its factorization.

647226153800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 647226153800 in words is "six hundred forty-seven billion, two hundred twenty-six million, one hundred fifty-three thousand, eight hundred".