38540972285 has 16 divisors (see below), whose sum is σ = 46873469232. Its totient is φ = 30418752000.

The previous prime is 38540972279. The next prime is 38540972293. The reversal of 38540972285 is 58227904583.

It can be written as a sum of positive squares in 8 ways, for example, as 210772324 + 38330199961 = 14518^2 + 195781^2 .

It is a de Polignac number, because none of the positive numbers 2^k-38540972285 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 6107 + ... + 277703.

It is an arithmetic number, because the mean of its divisors is an integer number (2929591827).

Almost surely, 2^38540972285 is an apocalyptic number.

It is an amenable number.

38540972285 is a deficient number, since it is larger than the sum of its proper divisors (8332496947).

38540972285 is a wasteful number, since it uses less digits than its factorization.

38540972285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271984.

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 38540972285 in words is "thirty-eight billion, five hundred forty million, nine hundred seventy-two thousand, two hundred eighty-five".