12477892338 has 54 divisors (see below), whose sum is σ = 27394372551. Its totient is φ = 4104796416.

The previous prime is 12477892331. The next prime is 12477892351. The reversal of 12477892338 is 83329877421.

It can be written as a sum of positive squares in 5 ways, for example, as 421193529 + 12056698809 = 20523^2 + 109803^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=78987.

It is not an unprimeable number, because it can be changed into a prime (12477892331) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 53553070 + ... + 53553302.

Almost surely, 2^12477892338 is an apocalyptic number.

12477892338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12477892338 is an abundant number, since it is smaller than the sum of its proper divisors (14916480213).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12477892338 is an equidigital number, since it uses as much as digits as its factorization.

12477892338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700 (or 351 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The spelling of 12477892338 in words is "twelve billion, four hundred seventy-seven million, eight hundred ninety-two thousand, three hundred thirty-eight".