648515106514854 has 48 divisors (see below), whose sum is σ = 1416439871892864. Its totient is φ = 214436477404800.

The previous prime is 648515106514757. The next prime is 648515106514921. The reversal of 648515106514854 is 458415601515846.

648515106514854 is a `hidden beast` number, since 6 + 4 + 8 + 5 + 1 + 5 + 106 + 514 + 8 + 5 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 648515106514791 and 648515106514800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 286351257 + ... + 288607124.

It is an arithmetic number, because the mean of its divisors is an integer number (29509163997768).

Almost surely, 2^{648515106514854} is an apocalyptic number.

648515106514854 is an abundant number, since it is smaller than the sum of its proper divisors (767924765378010).

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

648515106514854 is a wasteful number, since it uses less digits than its factorization.

648515106514854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574958893 (or 574958890 counting only the distinct ones).

The product of its (nonzero) digits is 92160000, while the sum is 63.

The spelling of 648515106514854 in words is "six hundred forty-eight trillion, five hundred fifteen billion, one hundred six million, five hundred fourteen thousand, eight hundred fifty-four".