1218092410172 has 48 divisors (see below), whose sum is σ = 2493407992320. Its totient is φ = 514512710400.

The previous prime is 1218092410141. The next prime is 1218092410181. The reversal of 1218092410172 is 2710142908121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10247654 + ... + 10365837.

It is an arithmetic number, because the mean of its divisors is an integer number (51945999840).

Almost surely, 2^{1218092410172} is an apocalyptic number.

It is an amenable number.

1218092410172 is an abundant number, since it is smaller than the sum of its proper divisors (1275315582148).

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

1218092410172 is a wasteful number, since it uses less digits than its factorization.

1218092410172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20613602 (or 20613600 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 38.

The spelling of 1218092410172 in words is "one trillion, two hundred eighteen billion, ninety-two million, four hundred ten thousand, one hundred seventy-two".