1218302627964 has 24 divisors (see below), whose sum is σ = 2843035886208. Its totient is φ = 406053768240.

The previous prime is 1218302627947. The next prime is 1218302627981. The reversal of 1218302627964 is 4697262038121.

It is an interprime number because it is at equal distance from previous prime (1218302627947) and next prime (1218302627981).

It is a super-2 number, since 2×1218302627964² (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 7 ways as a sum of consecutive naturals, for example, 5780632 + ... + 5987679.

It is an arithmetic number, because the mean of its divisors is an integer number (118459828592).

Almost surely, 2^{1218302627964} is an apocalyptic number.

It is an amenable number.

1218302627964 is an abundant number, since it is smaller than the sum of its proper divisors (1624733258244).

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

1218302627964 is a wasteful number, since it uses less digits than its factorization.

1218302627964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11776945 (or 11776943 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 1218302627964 in words is "one trillion, two hundred eighteen billion, three hundred two million, six hundred twenty-seven thousand, nine hundred sixty-four".