12478900255558 has 16 divisors (see below), whose sum is σ = 20649457014480. Its totient is φ = 5608494496000.

The previous prime is 12478900255543. The next prime is 12478900255583. The reversal of 12478900255558 is 85555200987421.

It is a happy number.

It is a super-3 number, since 3×12478900255558³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12478900255496 and 12478900255505.

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, 3186642643 + ... + 3186646558.

It is an arithmetic number, because the mean of its divisors is an integer number (1290591063405).

Almost surely, 2^{12478900255558} is an apocalyptic number.

12478900255558 is a deficient number, since it is larger than the sum of its proper divisors (8170556758922).

12478900255558 is a wasteful number, since it uses less digits than its factorization.

12478900255558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6373289303.

The product of its (nonzero) digits is 40320000, while the sum is 61.

The spelling of 12478900255558 in words is "twelve trillion, four hundred seventy-eight billion, nine hundred million, two hundred fifty-five thousand, five hundred fifty-eight".