1215428362368 has 256 divisors, whose sum is σ = 3638666465280. Its totient is φ = 356129280000.

The previous prime is 1215428362321. The next prime is 1215428362411. The reversal of 1215428362368 is 8632638245121.

It is a super-3 number, since 3×1215428362368³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1215428362368.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189996546 + ... + 190002942.

It is an arithmetic number, because the mean of its divisors is an integer number (14213540880).

Almost surely, 2^{1215428362368} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1215428362368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1819333232640).

1215428362368 is an abundant number, since it is smaller than the sum of its proper divisors (2423238102912).

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

1215428362368 is a wasteful number, since it uses less digits than its factorization.

1215428362368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7907 (or 7895 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 51.

The spelling of 1215428362368 in words is "one trillion, two hundred fifteen billion, four hundred twenty-eight million, three hundred sixty-two thousand, three hundred sixty-eight".