215073746368 has 56 divisors (see below), whose sum is σ = 459687789792. Its totient is φ = 99249460224.

The previous prime is 215073746353. The next prime is 215073746383. The reversal of 215073746368 is 863647370512.

215073746368 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (215073746353) and next prime (215073746383).

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6737421 + ... + 6769267.

It is an arithmetic number, because the mean of its divisors is an integer number (8208710532).

Almost surely, 2^215073746368 is an apocalyptic number.

It is an amenable number.

215073746368 is an abundant number, since it is smaller than the sum of its proper divisors (244614043424).

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

215073746368 is a wasteful number, since it uses less digits than its factorization.

215073746368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39989 (or 39979 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 215073746368 in words is "two hundred fifteen billion, seventy-three million, seven hundred forty-six thousand, three hundred sixty-eight".