648082467238 has 4 divisors (see below), whose sum is σ = 972123700860. Its totient is φ = 324041233618.

The previous prime is 648082467233. The next prime is 648082467247. The reversal of 648082467238 is 832764280846.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648082467233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162020616808 + ... + 162020616811.

It is an arithmetic number, because the mean of its divisors is an integer number (243030925215).

Almost surely, 2^648082467238 is an apocalyptic number.

648082467238 is a deficient number, since it is larger than the sum of its proper divisors (324041233622).

648082467238 is a wasteful number, since it uses less digits than its factorization.

648082467238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324041233621.

The product of its (nonzero) digits is 24772608, while the sum is 58.

The spelling of 648082467238 in words is "six hundred forty-eight billion, eighty-two million, four hundred sixty-seven thousand, two hundred thirty-eight".