2781118752 has 24 divisors (see below), whose sum is σ = 7300436976. Its totient is φ = 927039552.

The previous prime is 2781118751. The next prime is 2781118793. The reversal of 2781118752 is 2578111872.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (2781118751) 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, 14484898 + ... + 14485089.

It is an arithmetic number, because the mean of its divisors is an integer number (304184874).

Almost surely, 2^2781118752 is an apocalyptic number.

It is an amenable number.

2781118752 is an abundant number, since it is smaller than the sum of its proper divisors (4519318224).

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

2781118752 is a wasteful number, since it uses less digits than its factorization.

2781118752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28970000 (or 28969992 counting only the distinct ones).

The product of its digits is 62720, while the sum is 42.

The square root of 2781118752 is about 52736.3134092629. The cubic root of 2781118752 is about 1406.2844603980.

The spelling of 2781118752 in words is "two billion, seven hundred eighty-one million, one hundred eighteen thousand, seven hundred fifty-two".