354424621838 has 64 divisors (see below), whose sum is σ = 636358474752. Its totient is φ = 144908870400.

The previous prime is 354424621783. The next prime is 354424621849. The reversal of 354424621838 is 838126424453.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4487288 + ... + 4565588.

It is an arithmetic number, because the mean of its divisors is an integer number (9943101168).

Almost surely, 2^354424621838 is an apocalyptic number.

354424621838 is a deficient number, since it is larger than the sum of its proper divisors (281933852914).

354424621838 is a wasteful number, since it uses less digits than its factorization.

354424621838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78529.

The product of its digits is 4423680, while the sum is 50.

The spelling of 354424621838 in words is "three hundred fifty-four billion, four hundred twenty-four million, six hundred twenty-one thousand, eight hundred thirty-eight".