12456505430 has 32 divisors (see below), whose sum is σ = 23239504800. Its totient is φ = 4801531392.

The previous prime is 12456505423. The next prime is 12456505441. The reversal of 12456505430 is 3450565421.

It is a super-3 number, since 3×12456505430³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110606 + ... + 192734.

It is an arithmetic number, because the mean of its divisors is an integer number (726234525).

Almost surely, 2^12456505430 is an apocalyptic number.

12456505430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12456505430 is a deficient number, since it is larger than the sum of its proper divisors (10782999370).

12456505430 is a wasteful number, since it uses less digits than its factorization.

12456505430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82688.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 12456505430 in words is "twelve billion, four hundred fifty-six million, five hundred five thousand, four hundred thirty".