648462894240 has 192 divisors, whose sum is σ = 2435965249536. Its totient is φ = 141775721472.

The previous prime is 648462894221. The next prime is 648462894259. The reversal of 648462894240 is 42498264846.

It is an interprime number because it is at equal distance from previous prime (648462894221) and next prime (648462894259).

It is a super-2 number, since 2×648462894240² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4118262 + ... + 4272821.

It is an arithmetic number, because the mean of its divisors is an integer number (12687319008).

Almost surely, 2^648462894240 is an apocalyptic number.

648462894240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

648462894240 is an abundant number, since it is smaller than the sum of its proper divisors (1787502355296).

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

648462894240 is a wasteful number, since it uses less digits than its factorization.

648462894240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8391131 (or 8391123 counting only the distinct ones).

The product of its (nonzero) digits is 21233664, while the sum is 57.

The spelling of 648462894240 in words is "six hundred forty-eight billion, four hundred sixty-two million, eight hundred ninety-four thousand, two hundred forty".