649490348088 has 48 divisors (see below), whose sum is σ = 1783132762320. Its totient is φ = 213531071616.

The previous prime is 649490348053. The next prime is 649490348099. The reversal of 649490348088 is 880843094946.

649490348088 is a `hidden beast` number, since 64 + 9 + 4 + 90 + 3 + 480 + 8 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61780356 + ... + 61790867.

It is an arithmetic number, because the mean of its divisors is an integer number (37148599215).

Almost surely, 2^649490348088 is an apocalyptic number.

It is an amenable number.

649490348088 is an abundant number, since it is smaller than the sum of its proper divisors (1133642414232).

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

649490348088 is a wasteful number, since it uses less digits than its factorization.

649490348088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123571308 (or 123571301 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 63.

It can be divided in two parts, 649490 and 348088, that added together give a triangular number (997578 = T₁₄₁₂).

The spelling of 649490348088 in words is "six hundred forty-nine billion, four hundred ninety million, three hundred forty-eight thousand, eighty-eight".