1228617510078 has 16 divisors (see below), whose sum is σ = 2808268594560. Its totient is φ = 351033574296.

The previous prime is 1228617510061. The next prime is 1228617510137. The reversal of 1228617510078 is 8700157168221.

It is a Curzon number.

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, 14626398888 + ... + 14626398971.

It is an arithmetic number, because the mean of its divisors is an integer number (175516787160).

Almost surely, 2^{1228617510078} is an apocalyptic number.

1228617510078 is an abundant number, since it is smaller than the sum of its proper divisors (1579651084482).

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

1228617510078 is a wasteful number, since it uses less digits than its factorization.

1228617510078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29252797871.

The product of its (nonzero) digits is 376320, while the sum is 48.

The spelling of 1228617510078 in words is "one trillion, two hundred twenty-eight billion, six hundred seventeen million, five hundred ten thousand, seventy-eight".