2757531816 has 128 divisors (see below), whose sum is σ = 8533728000. Its totient is φ = 819189504.

The previous prime is 2757531761. The next prime is 2757531817. The reversal of 2757531816 is 6181357572.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2757531817) 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 31 ways as a sum of consecutive naturals, for example, 64501 + ... + 98363.

It is an arithmetic number, because the mean of its divisors is an integer number (66669750).

Almost surely, 2^2757531816 is an apocalyptic number.

2757531816 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2757531816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4266864000).

2757531816 is an abundant number, since it is smaller than the sum of its proper divisors (5776196184).

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

2757531816 is a wasteful number, since it uses less digits than its factorization.

2757531816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33920 (or 33910 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The square root of 2757531816 is about 52512.2063524282. The cubic root of 2757531816 is about 1402.2975566416.

The spelling of 2757531816 in words is "two billion, seven hundred fifty-seven million, five hundred thirty-one thousand, eight hundred sixteen".