8451187338 has 32 divisors (see below), whose sum is σ = 18442225152. Its totient is φ = 2560511600.

The previous prime is 8451187333. The next prime is 8451187343. The reversal of 8451187338 is 8337811548.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8451187333) and next prime (8451187343).

It is not an unprimeable number, because it can be changed into a prime (8451187333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679645 + ... + 691967.

It is an arithmetic number, because the mean of its divisors is an integer number (576319536).

Almost surely, 2^8451187338 is an apocalyptic number.

8451187338 is an abundant number, since it is smaller than the sum of its proper divisors (9991037814).

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

8451187338 is a wasteful number, since it uses less digits than its factorization.

8451187338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22730.

The product of its digits is 645120, while the sum is 48.

The square root of 8451187338 is about 91930.3395947170. The cubic root of 8451187338 is about 2036.9134518386.

The spelling of 8451187338 in words is "eight billion, four hundred fifty-one million, one hundred eighty-seven thousand, three hundred thirty-eight".