215474878080 has 1280 divisors, whose sum is σ = 1001514792960. Its totient is φ = 42809057280.

The previous prime is 215474877977. The next prime is 215474878123. The reversal of 215474878080 is 80878474512.

215474878080 is a `hidden beast` number, since 2 + 1 + 5 + 4 + 7 + 487 + 80 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 159 ways as a sum of consecutive naturals, for example, 91807467 + ... + 91809813.

It is an arithmetic number, because the mean of its divisors is an integer number (782433432).

Almost surely, 2^215474878080 is an apocalyptic number.

215474878080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215474878080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500757396480).

215474878080 is an abundant number, since it is smaller than the sum of its proper divisors (786039914880).

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

215474878080 is a wasteful number, since it uses less digits than its factorization.

215474878080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419 (or 2398 counting only the distinct ones).

The product of its (nonzero) digits is 4014080, while the sum is 54.

The spelling of 215474878080 in words is "two hundred fifteen billion, four hundred seventy-four million, eight hundred seventy-eight thousand, eighty".