649425524946 has 32 divisors (see below), whose sum is σ = 1420156108800. Its totient is φ = 196347323280.

The previous prime is 649425524861. The next prime is 649425524971.

It is a happy number.

649425524946 is nontrivially palindromic in base 10.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 649425524946.

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 15 ways as a sum of consecutive naturals, for example, 11178066 + ... + 11236013.

It is an arithmetic number, because the mean of its divisors is an integer number (44379878400).

Almost surely, 2^649425524946 is an apocalyptic number.

649425524946 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

649425524946 is an abundant number, since it is smaller than the sum of its proper divisors (770730583854).

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

649425524946 is a wasteful number, since it uses less digits than its factorization.

649425524946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22414534.

The product of its digits is 74649600, while the sum is 60.

The spelling of 649425524946 in words is "six hundred forty-nine billion, four hundred twenty-five million, five hundred twenty-four thousand, nine hundred forty-six".