8274620138 has 8 divisors (see below), whose sum is σ = 12415044420. Its totient is φ = 4136272000.

The previous prime is 8274620077. The next prime is 8274620147. The reversal of 8274620138 is 8310264728.

It can be written as a sum of positive squares in 2 ways, for example, as 8261537449 + 13082689 = 90893^2 + 3617^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8274620095 and 8274620104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509033 + ... + 525036.

Almost surely, 2^8274620138 is an apocalyptic number.

8274620138 is a deficient number, since it is larger than the sum of its proper divisors (4140424282).

8274620138 is a wasteful number, since it uses less digits than its factorization.

8274620138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038072.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 8274620138 is about 90964.9390589583. The cubic root of 8274620138 is about 2022.6280320672.

The spelling of 8274620138 in words is "eight billion, two hundred seventy-four million, six hundred twenty thousand, one hundred thirty-eight".