3980178715 has 4 divisors (see below), whose sum is σ = 4776214464. Its totient is φ = 3184142968.

The previous prime is 3980178707. The next prime is 3980178721. The reversal of 3980178715 is 5178710893.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3980178715 - 2³ = 3980178707 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 398017867 + ... + 398017876.

It is an arithmetic number, because the mean of its divisors is an integer number (1194053616).

Almost surely, 2^3980178715 is an apocalyptic number.

3980178715 is a deficient number, since it is larger than the sum of its proper divisors (796035749).

3980178715 is an equidigital number, since it uses as much as digits as its factorization.

3980178715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796035748.

The product of its (nonzero) digits is 423360, while the sum is 49.

The square root of 3980178715 is about 63088.6575780465. The cubic root of 3980178715 is about 1584.7746816212.

It can be divided in two parts, 3980178 and 715, that added together give a palindrome (3980893).

The spelling of 3980178715 in words is "three billion, nine hundred eighty million, one hundred seventy-eight thousand, seven hundred fifteen".