12499403522 has 8 divisors (see below), whose sum is σ = 18752907072. Its totient is φ = 6248434500.

The previous prime is 12499403507. The next prime is 12499403531. The reversal of 12499403522 is 22530499421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12499403522.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621254 + ... + 641057.

It is an arithmetic number, because the mean of its divisors is an integer number (2344113384).

Almost surely, 2^12499403522 is an apocalyptic number.

12499403522 is a deficient number, since it is larger than the sum of its proper divisors (6253503550).

12499403522 is a wasteful number, since it uses less digits than its factorization.

12499403522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267264.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 12499403522 in words is "twelve billion, four hundred ninety-nine million, four hundred three thousand, five hundred twenty-two".