1227948595978 has 16 divisors (see below), whose sum is σ = 1987912129896. Its totient is φ = 565516117440.

The previous prime is 1227948595963. The next prime is 1227948595981. The reversal of 1227948595978 is 8795958497221.

It can be written as a sum of positive squares in 4 ways, for example, as 875809607409 + 352138988569 = 935847^2 + 593413^2 .

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, 51212301 + ... + 51236272.

Almost surely, 2^{1227948595978} is an apocalyptic number.

1227948595978 is a deficient number, since it is larger than the sum of its proper divisors (759963533918).

1227948595978 is a wasteful number, since it uses less digits than its factorization.

1227948595978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102449049.

The product of its digits is 914457600, while the sum is 76.

The spelling of 1227948595978 in words is "one trillion, two hundred twenty-seven billion, nine hundred forty-eight million, five hundred ninety-five thousand, nine hundred seventy-eight".