2678734423 has 8 divisors (see below), whose sum is σ = 2718871200. Its totient is φ = 2638864800.

The previous prime is 2678734393. The next prime is 2678734477. The reversal of 2678734423 is 3244378762.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2678734423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2678734483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46540 + ... + 86737.

It is an arithmetic number, because the mean of its divisors is an integer number (339858900).

Almost surely, 2^2678734423 is an apocalyptic number.

2678734423 is a deficient number, since it is larger than the sum of its proper divisors (40136777).

2678734423 is a wasteful number, since it uses less digits than its factorization.

2678734423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133577.

The product of its digits is 1354752, while the sum is 46.

The square root of 2678734423 is about 51756.4916025034. The cubic root of 2678734423 is about 1388.8112298781.

The spelling of 2678734423 in words is "two billion, six hundred seventy-eight million, seven hundred thirty-four thousand, four hundred twenty-three".