12474047421 has 18 divisors (see below), whose sum is σ = 19804986110. Its totient is φ = 7560028080.

The previous prime is 12474047389. The next prime is 12474047431.

12474047421 is a `hidden beast` number, since 1 + 247 + 404 + 7 + 4 + 2 + 1 = 666.

12474047421 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 10130422500 + 2343624921 = 100650^2 + 48411^2 .

It is not a de Polignac number, because 12474047421 - 2⁵ = 12474047389 is a prime.

It is a super-2 number, since 2×12474047421² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12474047431) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5726206 + ... + 5728383.

Almost surely, 2^12474047421 is an apocalyptic number.

12474047421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12474047421 is a deficient number, since it is larger than the sum of its proper divisors (7330938689).

12474047421 is a wasteful number, since it uses less digits than its factorization.

12474047421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11454617 (or 11454603 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The spelling of 12474047421 in words is "twelve billion, four hundred seventy-four million, forty-seven thousand, four hundred twenty-one".