2781634026 has 32 divisors (see below), whose sum is σ = 5755394880. Its totient is φ = 895556736.

The previous prime is 2781633973. The next prime is 2781634073. The reversal of 2781634026 is 6204361872.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15316 + ... + 76143.

It is an arithmetic number, because the mean of its divisors is an integer number (179856090).

Almost surely, 2^2781634026 is an apocalyptic number.

2781634026 is an abundant number, since it is smaller than the sum of its proper divisors (2973760854).

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

2781634026 is a wasteful number, since it uses less digits than its factorization.

2781634026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91638.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 2781634026 is about 52741.1985643102. The cubic root of 2781634026 is about 1406.3713051940.

Adding to 2781634026 its reverse (6204361872), we get a palindrome (8985995898).

The spelling of 2781634026 in words is "two billion, seven hundred eighty-one million, six hundred thirty-four thousand, twenty-six".