12491103758 has 16 divisors (see below), whose sum is σ = 21671314560. Its totient is φ = 5288831736.

The previous prime is 12491103749. The next prime is 12491103791. The reversal of 12491103758 is 85730119421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5373668 + ... + 5375991.

It is an arithmetic number, because the mean of its divisors is an integer number (1354457160).

Almost surely, 2^12491103758 is an apocalyptic number.

12491103758 is a deficient number, since it is larger than the sum of its proper divisors (9180210802).

12491103758 is a wasteful number, since it uses less digits than its factorization.

12491103758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10749751.

The product of its (nonzero) digits is 60480, while the sum is 41.

The spelling of 12491103758 in words is "twelve billion, four hundred ninety-one million, one hundred three thousand, seven hundred fifty-eight".