647489309563152 has 800 divisors, whose sum is σ = 2218641589469184. Its totient is φ = 178397390131200.

The previous prime is 647489309563087. The next prime is 647489309563153. The reversal of 647489309563152 is 251365903984746.

647489309563152 is a `hidden beast` number, since 6 + 4 + 7 + 4 + 8 + 9 + 3 + 0 + 9 + 563 + 1 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (647489309563153) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 223041441733 + ... + 223041444635.

It is a 1-persistent number, because it is pandigital, but 2⋅647489309563152 = 1294978619126304 is not.

Almost surely, 2^{647489309563152} is an apocalyptic number.

647489309563152 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 647489309563152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1109320794734592).

647489309563152 is an abundant number, since it is smaller than the sum of its proper divisors (1571152279906032).

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

647489309563152 is a wasteful number, since it uses less digits than its factorization.

647489309563152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5489 (or 5474 counting only the distinct ones).

The product of its (nonzero) digits is 1175731200, while the sum is 72.

The spelling of 647489309563152 in words is "six hundred forty-seven trillion, four hundred eighty-nine billion, three hundred nine million, five hundred sixty-three thousand, one hundred fifty-two".