2755786512 has 40 divisors (see below), whose sum is σ = 7121731680. Its totient is φ = 918257920.

The previous prime is 2755786493. The next prime is 2755786519. The reversal of 2755786512 is 2156875572.

It is a super-2 number, since 2×2755786512² = 15188718599442252288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (2755786519) 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, 145087 + ... + 162977.

It is an arithmetic number, because the mean of its divisors is an integer number (178043292).

Almost surely, 2^2755786512 is an apocalyptic number.

It is an amenable number.

2755786512 is an abundant number, since it is smaller than the sum of its proper divisors (4365945168).

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

2755786512 is a wasteful number, since it uses less digits than its factorization.

2755786512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21111 (or 21105 counting only the distinct ones).

The product of its digits is 1176000, while the sum is 48.

The square root of 2755786512 is about 52495.5856429853. The cubic root of 2755786512 is about 1402.0016456330.

The spelling of 2755786512 in words is "two billion, seven hundred fifty-five million, seven hundred eighty-six thousand, five hundred twelve".