2749653656 has 8 divisors (see below), whose sum is σ = 5155600620. Its totient is φ = 1374826824.

The previous prime is 2749653649. The next prime is 2749653671. The reversal of 2749653656 is 6563569472.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2749653598 and 2749653607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171853346 + ... + 171853361.

Almost surely, 2^2749653656 is an apocalyptic number.

It is an amenable number.

2749653656 is a deficient number, since it is larger than the sum of its proper divisors (2405946964).

2749653656 is a wasteful number, since it uses less digits than its factorization.

2749653656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343706713 (or 343706709 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 53.

The square root of 2749653656 is about 52437.1400440566. The cubic root of 2749653656 is about 1400.9608465244.

The spelling of 2749653656 in words is "two billion, seven hundred forty-nine million, six hundred fifty-three thousand, six hundred fifty-six".