12159707451 has 4 divisors (see below), whose sum is σ = 16212943272. Its totient is φ = 8106471632.

The previous prime is 12159707449. The next prime is 12159707467. The reversal of 12159707451 is 15470795121.

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

It is a cyclic number.

It is not a de Polignac number, because 12159707451 - 2¹ = 12159707449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12159700451) 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, 2026617906 + ... + 2026617911.

It is an arithmetic number, because the mean of its divisors is an integer number (4053235818).

Almost surely, 2^12159707451 is an apocalyptic number.

12159707451 is a deficient number, since it is larger than the sum of its proper divisors (4053235821).

12159707451 is an equidigital number, since it uses as much as digits as its factorization.

12159707451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4053235820.

The product of its (nonzero) digits is 88200, while the sum is 42.

The spelling of 12159707451 in words is "twelve billion, one hundred fifty-nine million, seven hundred seven thousand, four hundred fifty-one".