648824831049 has 16 divisors (see below), whose sum is σ = 912855657600. Its totient is φ = 409094564736.

The previous prime is 648824831041. The next prime is 648824831051. The reversal of 648824831049 is 940138428846.

It is not a de Polignac number, because 648824831049 - 2³ = 648824831041 is a prime.

It is a super-2 number, since 2×648824831049² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 648824831049.

It is not an unprimeable number, because it can be changed into a prime (648824831041) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 52821154 + ... + 52833435.

It is an arithmetic number, because the mean of its divisors is an integer number (57053478600).

Almost surely, 2^648824831049 is an apocalyptic number.

648824831049 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

648824831049 is a deficient number, since it is larger than the sum of its proper divisors (264030826551).

648824831049 is a wasteful number, since it uses less digits than its factorization.

648824831049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105654704.

The product of its (nonzero) digits is 10616832, while the sum is 57.

The spelling of 648824831049 in words is "six hundred forty-eight billion, eight hundred twenty-four million, eight hundred thirty-one thousand, forty-nine".