2802135816 has 128 divisors (see below), whose sum is σ = 8320838400. Its totient is φ = 871580160.

The previous prime is 2802135799. The next prime is 2802135851. The reversal of 2802135816 is 6185312082.

It is a happy number.

2802135816 is a `hidden beast` number, since 280 + 21 + 358 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196810 + ... + 210566.

It is an arithmetic number, because the mean of its divisors is an integer number (65006550).

Almost surely, 2^2802135816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2802135816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4160419200).

2802135816 is an abundant number, since it is smaller than the sum of its proper divisors (5518702584).

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

2802135816 is a wasteful number, since it uses less digits than its factorization.

2802135816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13836 (or 13826 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 2802135816 is about 52935.2039384000. The cubic root of 2802135816 is about 1409.8180299344.

Adding to 2802135816 its reverse (6185312082), we get a palindrome (8987447898).

The spelling of 2802135816 in words is "two billion, eight hundred two million, one hundred thirty-five thousand, eight hundred sixteen".