39459462138 has 12 divisors (see below), whose sum is σ = 85495501338. Its totient is φ = 13153154040.

The previous prime is 39459462037. The next prime is 39459462139. The reversal of 39459462138 is 83126495493.

39459462138 is a `hidden beast` number, since 3 + 9 + 4 + 5 + 9 + 4 + 621 + 3 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 32301794529 + 7157667609 = 179727^2 + 84603^2 .

It is not an unprimeable number, because it can be changed into a prime (39459462139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1096096153 + ... + 1096096188.

Almost surely, 2^39459462138 is an apocalyptic number.

39459462138 is an abundant number, since it is smaller than the sum of its proper divisors (46036039200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39459462138 is a wasteful number, since it uses less digits than its factorization.

39459462138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2192192349 (or 2192192346 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The spelling of 39459462138 in words is "thirty-nine billion, four hundred fifty-nine million, four hundred sixty-two thousand, one hundred thirty-eight".