12497616487 has 16 divisors (see below), whose sum is σ = 13337719200. Its totient is φ = 11669548032.

The previous prime is 12497616437. The next prime is 12497616541. The reversal of 12497616487 is 78461679421.

It is a cyclic number.

It is not a de Polignac number, because 12497616487 - 2¹⁵ = 12497583719 is a prime.

It is a super-2 number, since 2×12497616487² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12497616437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1115389 + ... + 1126537.

It is an arithmetic number, because the mean of its divisors is an integer number (833607450).

Almost surely, 2^12497616487 is an apocalyptic number.

12497616487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12497616487 is a deficient number, since it is larger than the sum of its proper divisors (840102713).

12497616487 is a wasteful number, since it uses less digits than its factorization.

12497616487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11682.

The product of its digits is 4064256, while the sum is 55.

The spelling of 12497616487 in words is "twelve billion, four hundred ninety-seven million, six hundred sixteen thousand, four hundred eighty-seven".