2678730634 has 8 divisors (see below), whose sum is σ = 4035341700. Its totient is φ = 1333616736.

The previous prime is 2678730631. The next prime is 2678730641. The reversal of 2678730634 is 4360378762.

It can be written as a sum of positive squares in 2 ways, for example, as 2376075025 + 302655609 = 48745^2 + 17397^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2678730631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2873709 + ... + 2874640.

Almost surely, 2^2678730634 is an apocalyptic number.

2678730634 is a deficient number, since it is larger than the sum of its proper divisors (1356611066).

2678730634 is a wasteful number, since it uses less digits than its factorization.

2678730634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5748584.

The product of its (nonzero) digits is 1016064, while the sum is 46.

The square root of 2678730634 is about 51756.4549983864. The cubic root of 2678730634 is about 1388.8105750654.

The spelling of 2678730634 in words is "two billion, six hundred seventy-eight million, seven hundred thirty thousand, six hundred thirty-four".