1679652864 has 72 divisors (see below), whose sum is σ = 4851199080. Its totient is φ = 559878144.

The previous prime is 1679652857. The next prime is 1679652869. The reversal of 1679652864 is 4682569761.

It is a tau number, because it is divible by the number of its divisors (72).

It is a self number, because there is not a number n which added to its sum of digits gives 1679652864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1679652869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27132 + ... + 63995.

It is an arithmetic number, because the mean of its divisors is an integer number (67377765).

Almost surely, 2^1679652864 is an apocalyptic number.

It is an amenable number.

1679652864 is an abundant number, since it is smaller than the sum of its proper divisors (3171546216).

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

1679652864 is an equidigital number, since it uses as much as digits as its factorization.

1679652864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91155 (or 91132 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 1679652864 is about 40983.5682194706. The cubic root of 1679652864 is about 1188.7025059724.

The spelling of 1679652864 in words is "one billion, six hundred seventy-nine million, six hundred fifty-two thousand, eight hundred sixty-four".