438625802371 has 4 divisors (see below), whose sum is σ = 438649275744. Its totient is φ = 438602329000.

The previous prime is 438625802369. The next prime is 438625802399. The reversal of 438625802371 is 173208526834.

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 438625802371 - 2¹ = 438625802369 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 not an unprimeable number, because it can be changed into a prime (438625806371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11708635 + ... + 11746036.

It is an arithmetic number, because the mean of its divisors is an integer number (109662318936).

Almost surely, 2^438625802371 is an apocalyptic number.

438625802371 is a deficient number, since it is larger than the sum of its proper divisors (23473373).

438625802371 is a wasteful number, since it uses less digits than its factorization.

438625802371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23473372.

The product of its (nonzero) digits is 1935360, while the sum is 49.

It can be divided in two parts, 438625 and 802371, that added together give a square (1240996 = 1114²).

The spelling of 438625802371 in words is "four hundred thirty-eight billion, six hundred twenty-five million, eight hundred two thousand, three hundred seventy-one".