2786428678434 has 16 divisors (see below), whose sum is σ = 5581016746272. Its totient is φ = 927449661248.

The previous prime is 2786428678343. The next prime is 2786428678441. The reversal of 2786428678434 is 4348768246872.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339970119 + ... + 339978314.

It is an arithmetic number, because the mean of its divisors is an integer number (348813546642).

Almost surely, 2^{2786428678434} is an apocalyptic number.

2786428678434 is an abundant number, since it is smaller than the sum of its proper divisors (2794588067838).

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

2786428678434 is a wasteful number, since it uses less digits than its factorization.

2786428678434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679949121.

The product of its digits is 693633024, while the sum is 69.

The spelling of 2786428678434 in words is "two trillion, seven hundred eighty-six billion, four hundred twenty-eight million, six hundred seventy-eight thousand, four hundred thirty-four".