12128837061 has 64 divisors (see below), whose sum is σ = 18505138176. Its totient is φ = 7002340800.

The previous prime is 12128837053. The next prime is 12128837081. The reversal of 12128837061 is 16073882121.

It is not a de Polignac number, because 12128837061 - 2³ = 12128837053 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12128837041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9139380 + ... + 9140706.

It is an arithmetic number, because the mean of its divisors is an integer number (289142784).

Almost surely, 2^12128837061 is an apocalyptic number.

12128837061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12128837061 is a deficient number, since it is larger than the sum of its proper divisors (6376301115).

12128837061 is a wasteful number, since it uses less digits than its factorization.

12128837061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542.

The product of its (nonzero) digits is 32256, while the sum is 39.

The spelling of 12128837061 in words is "twelve billion, one hundred twenty-eight million, eight hundred thirty-seven thousand, sixty-one".