215713527456 has 192 divisors, whose sum is σ = 651657726720. Its totient is φ = 61203824640.

The previous prime is 215713527451. The next prime is 215713527467. The reversal of 215713527456 is 654725317512.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (215713527451) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 60917046 + ... + 60920586.

It is an arithmetic number, because the mean of its divisors is an integer number (3394050660).

Almost surely, 2^215713527456 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 215713527456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325828863360).

215713527456 is an abundant number, since it is smaller than the sum of its proper divisors (435944199264).

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

215713527456 is a wasteful number, since it uses less digits than its factorization.

215713527456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4167 (or 4159 counting only the distinct ones).

The product of its digits is 1764000, while the sum is 48.

The spelling of 215713527456 in words is "two hundred fifteen billion, seven hundred thirteen million, five hundred twenty-seven thousand, four hundred fifty-six".