647226622746 has 96 divisors (see below), whose sum is σ = 1591451928000. Its totient is φ = 193366000800.

The previous prime is 647226622741. The next prime is 647226622747.

647226622746 is a `hidden beast` number, since 6 + 4 + 7 + 2 + 2 + 6 + 622 + 7 + 4 + 6 = 666.

647226622746 is nontrivially palindromic in base 10.

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

It is a junction number, because it is equal to n+sod(n) for n = 647226622692 and 647226622701.

It is not an unprimeable number, because it can be changed into a prime (647226622741) 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 47 ways as a sum of consecutive naturals, for example, 2886280 + ... + 3102428.

It is an arithmetic number, because the mean of its divisors is an integer number (16577624250).

Almost surely, 2^647226622746 is an apocalyptic number.

647226622746 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 647226622746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (795725964000).

647226622746 is an abundant number, since it is smaller than the sum of its proper divisors (944225305254).

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

647226622746 is a wasteful number, since it uses less digits than its factorization.

647226622746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216313 (or 216236 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 54.

The spelling of 647226622746 in words is "six hundred forty-seven billion, two hundred twenty-six million, six hundred twenty-two thousand, seven hundred forty-six".