2755678069 has 4 divisors (see below), whose sum is σ = 2761955680. Its totient is φ = 2749400460.

The previous prime is 2755678067. The next prime is 2755678117. The reversal of 2755678069 is 9608765572.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2755678069 - 2¹ = 2755678067 is a prime.

It is a super-2 number, since 2×2755678069² = 15187523239935137522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2755678061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3138147 + ... + 3139024.

It is an arithmetic number, because the mean of its divisors is an integer number (690488920).

Almost surely, 2^2755678069 is an apocalyptic number.

It is an amenable number.

2755678069 is a deficient number, since it is larger than the sum of its proper divisors (6277611).

2755678069 is an equidigital number, since it uses as much as digits as its factorization.

2755678069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6277610.

The product of its (nonzero) digits is 6350400, while the sum is 55.

The square root of 2755678069 is about 52494.5527555003. The cubic root of 2755678069 is about 1401.9832553286.

It can be divided in two parts, 27556 and 78069, that added together give a square (105625 = 325²).

The spelling of 2755678069 in words is "two billion, seven hundred fifty-five million, six hundred seventy-eight thousand, sixty-nine".