39554694242 has 24 divisors (see below), whose sum is σ = 69305332140. Its totient is φ = 16881661440.

The previous prime is 39554694239. The next prime is 39554694253. The reversal of 39554694242 is 24249645593.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39418528681 + 136165561 = 198541^2 + 11669^2 .

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 11 ways as a sum of consecutive naturals, for example, 813767 + ... + 861002.

Almost surely, 2^39554694242 is an apocalyptic number.

39554694242 is a deficient number, since it is larger than the sum of its proper divisors (29750637898).

39554694242 is a wasteful number, since it uses less digits than its factorization.

39554694242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675026 (or 1675019 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 53.

The spelling of 39554694242 in words is "thirty-nine billion, five hundred fifty-four million, six hundred ninety-four thousand, two hundred forty-two".