648164974 has 16 divisors (see below), whose sum is σ = 1023918480. Its totient is φ = 306875520.

The previous prime is 648164969. The next prime is 648164977. The reversal of 648164974 is 479461846.

648164974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648164977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134934 + ... + 139654.

It is an arithmetic number, because the mean of its divisors is an integer number (63994905).

Almost surely, 2^648164974 is an apocalyptic number.

648164974 is a deficient number, since it is larger than the sum of its proper divisors (375753506).

648164974 is a wasteful number, since it uses less digits than its factorization.

648164974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8355.

The product of its digits is 1161216, while the sum is 49.

The square root of 648164974 is about 25459.0843118915. The cubic root of 648164974 is about 865.4231722745.

The spelling of 648164974 in words is "six hundred forty-eight million, one hundred sixty-four thousand, nine hundred seventy-four".