138921674482 has 8 divisors (see below), whose sum is σ = 219350012400. Its totient is φ = 65805003684.

The previous prime is 138921674461. The next prime is 138921674483. The reversal of 138921674482 is 284476129831.

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

It is not an unprimeable number, because it can be changed into a prime (138921674483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1827916732 + ... + 1827916807.

It is an arithmetic number, because the mean of its divisors is an integer number (27418751550).

Almost surely, 2^138921674482 is an apocalyptic number.

138921674482 is a deficient number, since it is larger than the sum of its proper divisors (80428337918).

138921674482 is a wasteful number, since it uses less digits than its factorization.

138921674482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3655833560.

The product of its digits is 4644864, while the sum is 55.

The spelling of 138921674482 in words is "one hundred thirty-eight billion, nine hundred twenty-one million, six hundred seventy-four thousand, four hundred eighty-two".