12417547440 has 40 divisors (see below), whose sum is σ = 38494397808. Its totient is φ = 3311345920.

The previous prime is 12417547433. The next prime is 12417547511. The reversal of 12417547440 is 4474571421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

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, 25869651 + ... + 25870130.

Almost surely, 2^12417547440 is an apocalyptic number.

12417547440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12417547440 is an abundant number, since it is smaller than the sum of its proper divisors (26076850368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12417547440 is a wasteful number, since it uses less digits than its factorization.

12417547440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51739797 (or 51739791 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 39.

The spelling of 12417547440 in words is "twelve billion, four hundred seventeen million, five hundred forty-seven thousand, four hundred forty".