649176669898 has 16 divisors (see below), whose sum is σ = 980355506400. Its totient is φ = 322391746576.

The previous prime is 649176669887. The next prime is 649176669949. The reversal of 649176669898 is 898966671946.

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 7 ways as a sum of consecutive naturals, for example, 6375261 + ... + 6476287.

It is an arithmetic number, because the mean of its divisors is an integer number (61272219150).

Almost surely, 2^649176669898 is an apocalyptic number.

649176669898 is a deficient number, since it is larger than the sum of its proper divisors (331178836502).

649176669898 is a wasteful number, since it uses less digits than its factorization.

649176669898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122741.

The product of its digits is 1693052928, while the sum is 79.

The spelling of 649176669898 in words is "six hundred forty-nine billion, one hundred seventy-six million, six hundred sixty-nine thousand, eight hundred ninety-eight".