694388141938 has 8 divisors (see below), whose sum is σ = 1051694661888. Its totient is φ = 343823254644.

The previous prime is 694388141929. The next prime is 694388141939. The reversal of 694388141938 is 839141883496.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 694388141938.

It is not an unprimeable number, because it can be changed into a prime (694388141939) 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, 1685407906 + ... + 1685408317.

It is an arithmetic number, because the mean of its divisors is an integer number (131461832736).

Almost surely, 2^694388141938 is an apocalyptic number.

694388141938 is a deficient number, since it is larger than the sum of its proper divisors (357306519950).

694388141938 is a wasteful number, since it uses less digits than its factorization.

694388141938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3370816328.

The product of its digits is 35831808, while the sum is 64.

The spelling of 694388141938 in words is "six hundred ninety-four billion, three hundred eighty-eight million, one hundred forty-one thousand, nine hundred thirty-eight".