39554056418 has 4 divisors (see below), whose sum is σ = 59331084630. Its totient is φ = 19777028208.

The previous prime is 39554056327. The next prime is 39554056439. The reversal of 39554056418 is 81465045593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81465045593 = 37 ⋅2201757989.

It can be written as a sum of positive squares in only one way, i.e., 39088057849 + 465998569 = 197707^2 + 21587^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9888514103 + ... + 9888514106.

Almost surely, 2^39554056418 is an apocalyptic number.

39554056418 is a deficient number, since it is larger than the sum of its proper divisors (19777028212).

39554056418 is a wasteful number, since it uses less digits than its factorization.

39554056418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19777028211.

The product of its (nonzero) digits is 2592000, while the sum is 50.

The spelling of 39554056418 in words is "thirty-nine billion, five hundred fifty-four million, fifty-six thousand, four hundred eighteen".