54136863146 has 16 divisors (see below), whose sum is σ = 82220247720. Its totient is φ = 26731492800.

The previous prime is 54136863061. The next prime is 54136863149. The reversal of 54136863146 is 64136863145.

It can be written as a sum of positive squares in 4 ways, for example, as 48990952921 + 5145910225 = 221339^2 + 71735^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 54136863146.

It is not an unprimeable number, because it can be changed into a prime (54136863149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265901 + ... + 423056.

Almost surely, 2^54136863146 is an apocalyptic number.

54136863146 is a deficient number, since it is larger than the sum of its proper divisors (28083384574).

54136863146 is a wasteful number, since it uses less digits than its factorization.

54136863146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689449.

The product of its digits is 1244160, while the sum is 47.

Subtracting 54136863146 from its reverse (64136863145), we obtain a palindrome (9999999999).

The spelling of 54136863146 in words is "fifty-four billion, one hundred thirty-six million, eight hundred sixty-three thousand, one hundred forty-six".