438275787874377 has 4 divisors (see below), whose sum is σ = 584367717165840. Its totient is φ = 292183858582916.

The previous prime is 438275787874363. The next prime is 438275787874399. The reversal of 438275787874377 is 773478787572834.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 438275787874377 - 2²⁶ = 438275720765513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 438275787874293 and 438275787874302.

It is not an unprimeable number, because it can be changed into a prime (438275787874307) by changing a digit.

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, 73045964645727 + ... + 73045964645732.

It is an arithmetic number, because the mean of its divisors is an integer number (146091929291460).

Almost surely, 2^{438275787874377} is an apocalyptic number.

It is an amenable number.

438275787874377 is a deficient number, since it is larger than the sum of its proper divisors (146091929291463).

438275787874377 is a wasteful number, since it uses less digits than its factorization.

438275787874377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146091929291462.

The product of its digits is 86740254720, while the sum is 87.

The spelling of 438275787874377 in words is "four hundred thirty-eight trillion, two hundred seventy-five billion, seven hundred eighty-seven million, eight hundred seventy-four thousand, three hundred seventy-seven".