1224870506856 has 32 divisors (see below), whose sum is σ = 3402418075200. Its totient is φ = 408290168880.

The previous prime is 1224870506843. The next prime is 1224870506863. The reversal of 1224870506856 is 6586050784221.

1224870506856 is a `hidden beast` number, since 1 + 2 + 2 + 4 + 87 + 0 + 506 + 8 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 2835348180 + ... + 2835348611.

It is an arithmetic number, because the mean of its divisors is an integer number (106325564850).

Almost surely, 2^{1224870506856} is an apocalyptic number.

It is an amenable number.

1224870506856 is an abundant number, since it is smaller than the sum of its proper divisors (2177547568344).

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

1224870506856 is a wasteful number, since it uses less digits than its factorization.

1224870506856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5670696806 (or 5670696796 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 1224870506856 in words is "one trillion, two hundred twenty-four billion, eight hundred seventy million, five hundred six thousand, eight hundred fifty-six".