1227359622868 has 24 divisors (see below), whose sum is σ = 2163688032744. Its totient is φ = 609163584000.

The previous prime is 1227359622859. The next prime is 1227359622871. The reversal of 1227359622868 is 8682269537221.

It can be written as a sum of positive squares in 4 ways, for example, as 631455908164 + 595903714704 = 794642^2 + 771948^2 .

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, 10518928 + ... + 10634968.

It is an arithmetic number, because the mean of its divisors is an integer number (90153668031).

Almost surely, 2^{1227359622868} is an apocalyptic number.

It is an amenable number.

1227359622868 is a deficient number, since it is larger than the sum of its proper divisors (936328409876).

1227359622868 is a wasteful number, since it uses less digits than its factorization.

1227359622868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135483 (or 135481 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 61.

The spelling of 1227359622868 in words is "one trillion, two hundred twenty-seven billion, three hundred fifty-nine million, six hundred twenty-two thousand, eight hundred sixty-eight".