22728567542 has 16 divisors (see below), whose sum is σ = 34347525552. Its totient is φ = 11279708160.

The previous prime is 22728567523. The next prime is 22728567643. The reversal of 22728567542 is 24576582722.

It is a happy number.

It is a super-2 number, since 2×22728567542² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65753 + ... + 223115.

It is an arithmetic number, because the mean of its divisors is an integer number (2146720347).

Almost surely, 2^22728567542 is an apocalyptic number.

22728567542 is a deficient number, since it is larger than the sum of its proper divisors (11618958010).

22728567542 is a wasteful number, since it uses less digits than its factorization.

22728567542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157903.

The product of its digits is 3763200, while the sum is 50.

The spelling of 22728567542 in words is "twenty-two billion, seven hundred twenty-eight million, five hundred sixty-seven thousand, five hundred forty-two".