215432502542 has 8 divisors (see below), whose sum is σ = 324125035032. Its totient is φ = 107390824200.

The previous prime is 215432502511. The next prime is 215432502569. The reversal of 215432502542 is 245205234512.

It is a happy number.

215432502542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×215432502542² (a number of 23 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 162712709 + ... + 162714032.

It is an arithmetic number, because the mean of its divisors is an integer number (40515629379).

Almost surely, 2^215432502542 is an apocalyptic number.

215432502542 is a deficient number, since it is larger than the sum of its proper divisors (108692532490).

215432502542 is a wasteful number, since it uses less digits than its factorization.

215432502542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325427074.

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 215432502542 in words is "two hundred fifteen billion, four hundred thirty-two million, five hundred two thousand, five hundred forty-two".