12472900361 has 4 divisors (see below), whose sum is σ = 12474219924. Its totient is φ = 12471580800.

The previous prime is 12472900333. The next prime is 12472900421. The reversal of 12472900361 is 16300927421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6554521600 + 5918378761 = 80960^2 + 76931^2 .

It is a cyclic number.

It is not a de Polignac number, because 12472900361 - 2²² = 12468706057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12472900301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645500 + ... + 664541.

It is an arithmetic number, because the mean of its divisors is an integer number (3118554981).

Almost surely, 2^12472900361 is an apocalyptic number.

It is an amenable number.

12472900361 is a deficient number, since it is larger than the sum of its proper divisors (1319563).

12472900361 is an equidigital number, since it uses as much as digits as its factorization.

12472900361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319562.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 12472900361 in words is "twelve billion, four hundred seventy-two million, nine hundred thousand, three hundred sixty-one".