1218440148700 has 72 divisors (see below), whose sum is σ = 2649352208384. Its totient is φ = 486393336000.

The previous prime is 1218440148643. The next prime is 1218440148727. The reversal of 1218440148700 is 78410448121.

It is a super-2 number, since 2×1218440148700² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107716045 + ... + 107727355.

Almost surely, 2^{1218440148700} is an apocalyptic number.

1218440148700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1218440148700 is an abundant number, since it is smaller than the sum of its proper divisors (1430912059684).

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

1218440148700 is a wasteful number, since it uses less digits than its factorization.

1218440148700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13403 (or 13396 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 40.

The spelling of 1218440148700 in words is "one trillion, two hundred eighteen billion, four hundred forty million, one hundred forty-eight thousand, seven hundred".