438158630397 has 16 divisors (see below), whose sum is σ = 602217649152. Its totient is φ = 283218851760.

The previous prime is 438158630389. The next prime is 438158630443. The reversal of 438158630397 is 793036851834.

It is not a de Polignac number, because 438158630397 - 2³ = 438158630389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438158620397) 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 15 ways as a sum of consecutive naturals, for example, 14505979 + ... + 14536152.

It is an arithmetic number, because the mean of its divisors is an integer number (37638603072).

Almost surely, 2^438158630397 is an apocalyptic number.

438158630397 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

438158630397 is a deficient number, since it is larger than the sum of its proper divisors (164059018755).

438158630397 is a wasteful number, since it uses less digits than its factorization.

438158630397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29042288.

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 438158630397 in words is "four hundred thirty-eight billion, one hundred fifty-eight million, six hundred thirty thousand, three hundred ninety-seven".