389040139154 has 8 divisors (see below), whose sum is σ = 586784298828. Its totient is φ = 193445372880.

The previous prime is 389040139141. The next prime is 389040139183. The reversal of 389040139154 is 451931040983.

It can be written as a sum of positive squares in 2 ways, for example, as 364037256025 + 25002883129 = 603355^2 + 158123^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 389040139099 and 389040139108.

It is an unprimeable number.

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, 537347897 + ... + 537348620.

Almost surely, 2^389040139154 is an apocalyptic number.

389040139154 is a deficient number, since it is larger than the sum of its proper divisors (197744159674).

389040139154 is a wasteful number, since it uses less digits than its factorization.

389040139154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074696700.

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 389040139154 in words is "three hundred eighty-nine billion, forty million, one hundred thirty-nine thousand, one hundred fifty-four".