647340097536 has 720 divisors, whose sum is σ = 2210708541888. Its totient is φ = 186856243200.

The previous prime is 647340097519. The next prime is 647340097543. The reversal of 647340097536 is 635790043746.

It is a happy number.

647340097536 is a `hidden beast` number, since 64 + 7 + 3 + 40 + 0 + 9 + 7 + 536 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2686058376 + ... + 2686058616.

Almost surely, 2^647340097536 is an apocalyptic number.

647340097536 is a gapful number since it is divisible by the number (66) 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 647340097536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1105354270944).

647340097536 is an abundant number, since it is smaller than the sum of its proper divisors (1563368444352).

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

647340097536 is an equidigital number, since it uses as much as digits as its factorization.

647340097536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 54.

The spelling of 647340097536 in words is "six hundred forty-seven billion, three hundred forty million, ninety-seven thousand, five hundred thirty-six".