4486378631 has 4 divisors (see below), whose sum is σ = 5127289872. Its totient is φ = 3845467392.

The previous prime is 4486378607. The next prime is 4486378697. The reversal of 4486378631 is 1368736844.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4486378631 is a prime.

It is a super-2 number, since 2×4486378631² = 40255186441386868322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4486378631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4486378031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320455610 + ... + 320455623.

It is an arithmetic number, because the mean of its divisors is an integer number (1281822468).

Almost surely, 2^4486378631 is an apocalyptic number.

4486378631 is a deficient number, since it is larger than the sum of its proper divisors (640911241).

4486378631 is an equidigital number, since it uses as much as digits as its factorization.

4486378631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640911240.

The product of its digits is 2322432, while the sum is 50.

The square root of 4486378631 is about 66980.4346880490. The cubic root of 4486378631 is about 1649.2961345561.

The spelling of 4486378631 in words is "four billion, four hundred eighty-six million, three hundred seventy-eight thousand, six hundred thirty-one".