12169421476 has 6 divisors (see below), whose sum is σ = 21296487590. Its totient is φ = 6084710736.

The previous prime is 12169421449. The next prime is 12169421489. The reversal of 12169421476 is 67412496121.

It can be written as a sum of positive squares in only one way, i.e., 11940807076 + 228614400 = 109274^2 + 15120^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1521177681 + ... + 1521177688.

Almost surely, 2^12169421476 is an apocalyptic number.

It is an amenable number.

12169421476 is a deficient number, since it is larger than the sum of its proper divisors (9127066114).

12169421476 is a wasteful number, since it uses less digits than its factorization.

12169421476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3042355373 (or 3042355371 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The spelling of 12169421476 in words is "twelve billion, one hundred sixty-nine million, four hundred twenty-one thousand, four hundred seventy-six".