1653668752 has 40 divisors (see below), whose sum is σ = 3236400000. Its totient is φ = 818508672.

The previous prime is 1653668719. The next prime is 1653668791. The reversal of 1653668752 is 2578663561.

It is a junction number, because it is equal to n+sod(n) for n = 1653668696 and 1653668705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826249 + ... + 828247.

It is an arithmetic number, because the mean of its divisors is an integer number (80910000).

Almost surely, 2^1653668752 is an apocalyptic number.

It is an amenable number.

1653668752 is a deficient number, since it is larger than the sum of its proper divisors (1582731248).

1653668752 is a wasteful number, since it uses less digits than its factorization.

1653668752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2503 (or 2497 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 49.

The square root of 1653668752 is about 40665.3261636987. The cubic root of 1653668752 is about 1182.5409079290.

The spelling of 1653668752 in words is "one billion, six hundred fifty-three million, six hundred sixty-eight thousand, seven hundred fifty-two".