8254357638 has 16 divisors (see below), whose sum is σ = 17077981680. Its totient is φ = 2656574816.

The previous prime is 8254357621. The next prime is 8254357651. The reversal of 8254357638 is 8367534528.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23719245 + ... + 23719592.

It is an arithmetic number, because the mean of its divisors is an integer number (1067373855).

Almost surely, 2^8254357638 is an apocalyptic number.

8254357638 is an abundant number, since it is smaller than the sum of its proper divisors (8823624042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8254357638 is a wasteful number, since it uses less digits than its factorization.

8254357638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47438871.

The product of its digits is 4838400, while the sum is 51.

The square root of 8254357638 is about 90853.4954638510. The cubic root of 8254357638 is about 2020.9757105418.

The spelling of 8254357638 in words is "eight billion, two hundred fifty-four million, three hundred fifty-seven thousand, six hundred thirty-eight".