7828849755 has 24 divisors (see below), whose sum is σ = 13900985280. Its totient is φ = 4073546880.

The previous prime is 7828849751. The next prime is 7828849811. The reversal of 7828849755 is 5579488287.

7828849755 is a `hidden beast` number, since 78 + 28 + 8 + 497 + 55 = 666.

It is not a de Polignac number, because 7828849755 - 2² = 7828849751 is a prime.

It is a super-2 number, since 2×7828849755² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7828849692 and 7828849701.

It is not an unprimeable number, because it can be changed into a prime (7828849751) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2119795 + ... + 2123484.

It is an arithmetic number, because the mean of its divisors is an integer number (579207720).

Almost surely, 2^7828849755 is an apocalyptic number.

7828849755 is a deficient number, since it is larger than the sum of its proper divisors (6072135525).

7828849755 is a wasteful number, since it uses less digits than its factorization.

7828849755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243331 (or 4243328 counting only the distinct ones).

The product of its digits is 45158400, while the sum is 63.

The square root of 7828849755 is about 88480.7874908446. The cubic root of 7828849755 is about 1985.6345434581.

The spelling of 7828849755 in words is "seven billion, eight hundred twenty-eight million, eight hundred forty-nine thousand, seven hundred fifty-five".