2678462639 has 8 divisors (see below), whose sum is σ = 2715179520. Its totient is φ = 2641990176.

The previous prime is 2678462609. The next prime is 2678462641. The reversal of 2678462639 is 9362648762.

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-2678462639 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 (2678462609) 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, 38984 + ... + 82925.

It is an arithmetic number, because the mean of its divisors is an integer number (339397440).

Almost surely, 2^2678462639 is an apocalyptic number.

2678462639 is a deficient number, since it is larger than the sum of its proper divisors (36716881).

2678462639 is a wasteful number, since it uses less digits than its factorization.

2678462639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122209.

The product of its digits is 5225472, while the sum is 53.

The square root of 2678462639 is about 51753.8659328943. The cubic root of 2678462639 is about 1388.7642587619.

The spelling of 2678462639 in words is "two billion, six hundred seventy-eight million, four hundred sixty-two thousand, six hundred thirty-nine".