8739999378 has 48 divisors (see below), whose sum is σ = 20756185632. Its totient is φ = 2635920000.

The previous prime is 8739999361. The next prime is 8739999383.

8739999378 is a `hidden beast` number, since 87 + 3 + 99 + 99 + 378 = 666.

8739999378 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62823 + ... + 146378.

It is an arithmetic number, because the mean of its divisors is an integer number (432420534).

Almost surely, 2^8739999378 is an apocalyptic number.

8739999378 is an abundant number, since it is smaller than the sum of its proper divisors (12016186254).

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

8739999378 is a wasteful number, since it uses less digits than its factorization.

8739999378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209431 (or 209428 counting only the distinct ones).

The product of its digits is 185177664, while the sum is 72.

The square root of 8739999378 is about 93487.9638135306. The cubic root of 8739999378 is about 2059.8572950757.

The spelling of 8739999378 in words is "eight billion, seven hundred thirty-nine million, nine hundred ninety-nine thousand, three hundred seventy-eight".