12487904762 has 4 divisors (see below), whose sum is σ = 18731857146. Its totient is φ = 6243952380.

The previous prime is 12487904753. The next prime is 12487904773. The reversal of 12487904762 is 26740978421.

It is a happy number.

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., 6699586201 + 5788318561 = 81851^2 + 76081^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12487904762.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3121976189 + ... + 3121976192.

Almost surely, 2^12487904762 is an apocalyptic number.

12487904762 is a deficient number, since it is larger than the sum of its proper divisors (6243952384).

12487904762 is an equidigital number, since it uses as much as digits as its factorization.

12487904762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6243952383.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 12487904762 in words is "twelve billion, four hundred eighty-seven million, nine hundred four thousand, seven hundred sixty-two".