21542522314 has 8 divisors (see below), whose sum is σ = 32331631968. Its totient is φ = 10765311660.

The previous prime is 21542522311. The next prime is 21542522329. The reversal of 21542522314 is 41322524512.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (21542522311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2970222 + ... + 2977465.

It is an arithmetic number, because the mean of its divisors is an integer number (4041453996).

Almost surely, 2^21542522314 is an apocalyptic number.

21542522314 is a deficient number, since it is larger than the sum of its proper divisors (10789109654).

21542522314 is a wasteful number, since it uses less digits than its factorization.

21542522314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5949500.

The product of its digits is 19200, while the sum is 31.

The spelling of 21542522314 in words is "twenty-one billion, five hundred forty-two million, five hundred twenty-two thousand, three hundred fourteen".