38478399245 has 32 divisors (see below), whose sum is σ = 54296161920. Its totient is φ = 25807991040.

The previous prime is 38478399241. The next prime is 38478399247. The reversal of 38478399245 is 54299387483.

It is not a de Polignac number, because 38478399245 - 2² = 38478399241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38478399241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 774566 + ... + 822744.

It is an arithmetic number, because the mean of its divisors is an integer number (1696755060).

Almost surely, 2^38478399245 is an apocalyptic number.

It is an amenable number.

38478399245 is a deficient number, since it is larger than the sum of its proper divisors (15817762675).

38478399245 is a wasteful number, since it uses less digits than its factorization.

38478399245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49325.

The product of its digits is 52254720, while the sum is 62.

The spelling of 38478399245 in words is "thirty-eight billion, four hundred seventy-eight million, three hundred ninety-nine thousand, two hundred forty-five".