653732751648 has 48 divisors (see below), whose sum is σ = 1816992505440. Its totient is φ = 205092627456.

The previous prime is 653732751647. The next prime is 653732751653. The reversal of 653732751648 is 846157237356.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (653732751647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200284138 + ... + 200287401.

It is an arithmetic number, because the mean of its divisors is an integer number (37854010530).

Almost surely, 2^653732751648 is an apocalyptic number.

653732751648 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

653732751648 is an abundant number, since it is smaller than the sum of its proper divisors (1163259753792).

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

653732751648 is a wasteful number, since it uses less digits than its factorization.

653732751648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400571569 (or 400571561 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 57.

The spelling of 653732751648 in words is "six hundred fifty-three billion, seven hundred thirty-two million, seven hundred fifty-one thousand, six hundred forty-eight".