28547714240538 has 32 divisors (see below), whose sum is σ = 58229015714496. Its totient is φ = 9327321164928.

The previous prime is 28547714240537. The next prime is 28547714240581. The reversal of 28547714240538 is 83504241774582.

It is a super-2 number, since 2×28547714240538² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28547714240537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43123920 + ... + 43780907.

It is an arithmetic number, because the mean of its divisors is an integer number (1819656741078).

Almost surely, 2^{28547714240538} is an apocalyptic number.

28547714240538 is an abundant number, since it is smaller than the sum of its proper divisors (29681301473958).

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

28547714240538 is a wasteful number, since it uses less digits than its factorization.

28547714240538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86905918.

The product of its (nonzero) digits is 60211200, while the sum is 60.

The spelling of 28547714240538 in words is "twenty-eight trillion, five hundred forty-seven billion, seven hundred fourteen million, two hundred forty thousand, five hundred thirty-eight".