215226714648 has 32 divisors (see below), whose sum is σ = 586981949760. Its totient is φ = 65220216480.

The previous prime is 215226714641. The next prime is 215226714673. The reversal of 215226714648 is 846417622512.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 215226714597 and 215226714606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215226714641) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 407626090 + ... + 407626617.

It is an arithmetic number, because the mean of its divisors is an integer number (18343185930).

Almost surely, 2^215226714648 is an apocalyptic number.

It is an amenable number.

215226714648 is an abundant number, since it is smaller than the sum of its proper divisors (371755235112).

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

215226714648 is a wasteful number, since it uses less digits than its factorization.

215226714648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815252727 (or 815252723 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 48.

The spelling of 215226714648 in words is "two hundred fifteen billion, two hundred twenty-six million, seven hundred fourteen thousand, six hundred forty-eight".