648955914084 has 27 divisors (see below), whose sum is σ = 1640428556403. Its totient is φ = 216317026872.

The previous prime is 648955914071. The next prime is 648955914097. The reversal of 648955914084 is 480419559846.

The square root of 648955914084 is 805578.

It is a perfect power (a square), and thus also a powerful number.

648955914084 is a `hidden beast` number, since 6 + 489 + 5 + 5 + 9 + 140 + 8 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (648955914071) and next prime (648955914097).

It is a super-2 number, since 2×648955914084² (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 8 ways as a sum of consecutive naturals, for example, 4766337 + ... + 4900599.

Almost surely, 2^648955914084 is an apocalyptic number.

648955914084 is the 805578-th square number.

It is an amenable number.

648955914084 is an abundant number, since it is smaller than the sum of its proper divisors (991472642319).

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

648955914084 is an frugal number, since it uses more digits than its factorization.

648955914084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268536 (or 134268 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 63.

The spelling of 648955914084 in words is "six hundred forty-eight billion, nine hundred fifty-five million, nine hundred fourteen thousand, eighty-four".