648650395898496 has 192 divisors, whose sum is σ = 2022318460768320. Its totient is φ = 198765647732736.

The previous prime is 648650395898489. The next prime is 648650395898509. The reversal of 648650395898496 is 694898593056846.

648650395898496 is a `hidden beast` number, since 6 + 4 + 8 + 6 + 5 + 0 + 39 + 5 + 89 + 8 + 496 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 384290980 + ... + 385975203.

It is an arithmetic number, because the mean of its divisors is an integer number (10532908649835).

Almost surely, 2^{648650395898496} is an apocalyptic number.

It is an amenable number.

648650395898496 is an abundant number, since it is smaller than the sum of its proper divisors (1373668064869824).

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

648650395898496 is a wasteful number, since it uses less digits than its factorization.

648650395898496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770266263 (or 770266248 counting only the distinct ones).

The product of its (nonzero) digits is 96745881600, while the sum is 90.

The spelling of 648650395898496 in words is "six hundred forty-eight trillion, six hundred fifty billion, three hundred ninety-five million, eight hundred ninety-eight thousand, four hundred ninety-six".