12464472154 has 4 divisors (see below), whose sum is σ = 18696708234. Its totient is φ = 6232236076.

The previous prime is 12464472151. The next prime is 12464472173. The reversal of 12464472154 is 45127446421.

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

It can be written as a sum of positive squares in only one way, i.e., 12359880625 + 104591529 = 111175^2 + 10227^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12464472151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3116118037 + ... + 3116118040.

Almost surely, 2^12464472154 is an apocalyptic number.

12464472154 is a deficient number, since it is larger than the sum of its proper divisors (6232236080).

12464472154 is an equidigital number, since it uses as much as digits as its factorization.

12464472154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6232236079.

The product of its digits is 215040, while the sum is 40.

The spelling of 12464472154 in words is "twelve billion, four hundred sixty-four million, four hundred seventy-two thousand, one hundred fifty-four".