2780836136 has 32 divisors (see below), whose sum is σ = 5628268800. Its totient is φ = 1280464320.

The previous prime is 2780836133. The next prime is 2780836153. The reversal of 2780836136 is 6316380872.

It is not an unprimeable number, because it can be changed into a prime (2780836133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13805 + ... + 75843.

It is an arithmetic number, because the mean of its divisors is an integer number (175883400).

Almost surely, 2^2780836136 is an apocalyptic number.

2780836136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2780836136 is an abundant number, since it is smaller than the sum of its proper divisors (2847432664).

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

2780836136 is a wasteful number, since it uses less digits than its factorization.

2780836136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62489 (or 62485 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 2780836136 is about 52733.6338213099. The cubic root of 2780836136 is about 1406.2368234591.

The spelling of 2780836136 in words is "two billion, seven hundred eighty million, eight hundred thirty-six thousand, one hundred thirty-six".