1218796372050 has 48 divisors (see below), whose sum is σ = 3022751844000. Its totient is φ = 324997651840.

The previous prime is 1218796371967. The next prime is 1218796372117. The reversal of 1218796372050 is 502736978121.

It is a junction number, because it is equal to n+sod(n) for n = 1218796371984 and 1218796372002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3368326 + ... + 3712574.

It is an arithmetic number, because the mean of its divisors is an integer number (62973996750).

Almost surely, 2^{1218796372050} is an apocalyptic number.

1218796372050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1218796372050 is an abundant number, since it is smaller than the sum of its proper divisors (1803955471950).

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

1218796372050 is a wasteful number, since it uses less digits than its factorization.

1218796372050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367867 (or 367862 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 1218796372050 in words is "one trillion, two hundred eighteen billion, seven hundred ninety-six million, three hundred seventy-two thousand, fifty".