2680447138 has 8 divisors (see below), whose sum is σ = 4023281088. Its totient is φ = 1339353444.

The previous prime is 2680447093. The next prime is 2680447139. The reversal of 2680447138 is 8317440862.

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

It is a super-2 number, since 2×2680447138² = 14369593719224782088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2680447094 and 2680447103.

It is not an unprimeable number, because it can be changed into a prime (2680447139) 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, 431206 + ... + 437377.

It is an arithmetic number, because the mean of its divisors is an integer number (502910136).

Almost surely, 2^2680447138 is an apocalyptic number.

2680447138 is a deficient number, since it is larger than the sum of its proper divisors (1342833950).

2680447138 is a wasteful number, since it uses less digits than its factorization.

2680447138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870128.

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 2680447138 is about 51773.0348540628. The cubic root of 2680447138 is about 1389.1071570690.

The spelling of 2680447138 in words is "two billion, six hundred eighty million, four hundred forty-seven thousand, one hundred thirty-eight".