39788899955 has 16 divisors (see below), whose sum is σ = 54588026304. Its totient is φ = 27273621120.

The previous prime is 39788899949. The next prime is 39788899973. The reversal of 39788899955 is 55999888793.

It is not a de Polignac number, because 39788899955 - 2¹⁰ = 39788898931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39788899955.

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 15 ways as a sum of consecutive naturals, for example, 116816 + ... + 305325.

It is an arithmetic number, because the mean of its divisors is an integer number (3411751644).

Almost surely, 2^39788899955 is an apocalyptic number.

39788899955 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

39788899955 is a deficient number, since it is larger than the sum of its proper divisors (14799126349).

39788899955 is a wasteful number, since it uses less digits than its factorization.

39788899955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424846.

The product of its digits is 1763596800, while the sum is 80.

The spelling of 39788899955 in words is "thirty-nine billion, seven hundred eighty-eight million, eight hundred ninety-nine thousand, nine hundred fifty-five".