215896753912 has 64 divisors (see below), whose sum is σ = 487101312000. Its totient is φ = 87636422016.

The previous prime is 215896753883. The next prime is 215896753913. The reversal of 215896753912 is 219357698512.

It is a super-2 number, since 2×215896753912² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215896753913) 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 15 ways as a sum of consecutive naturals, for example, 4911889 + ... + 4955647.

It is an arithmetic number, because the mean of its divisors is an integer number (7610958000).

Almost surely, 2^215896753912 is an apocalyptic number.

It is an amenable number.

215896753912 is an abundant number, since it is smaller than the sum of its proper divisors (271204558088).

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

215896753912 is a wasteful number, since it uses less digits than its factorization.

215896753912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48428 (or 48424 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 58.

The spelling of 215896753912 in words is "two hundred fifteen billion, eight hundred ninety-six million, seven hundred fifty-three thousand, nine hundred twelve".