28530203455127 has 32 divisors (see below), whose sum is σ = 32795962752000. Its totient is φ = 24545975408640.

The previous prime is 28530203455123. The next prime is 28530203455133. The reversal of 28530203455127 is 72155430203582.

It is not a de Polignac number, because 28530203455127 - 2² = 28530203455123 is a prime.

It is a super-2 number, since 2×28530203455127² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28530203455123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 871960274 + ... + 871992992.

It is an arithmetic number, because the mean of its divisors is an integer number (1024873836000).

Almost surely, 2^{28530203455127} is an apocalyptic number.

28530203455127 is a deficient number, since it is larger than the sum of its proper divisors (4265759296873).

28530203455127 is a wasteful number, since it uses less digits than its factorization.

28530203455127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36951.

The product of its (nonzero) digits is 2016000, while the sum is 47.

It can be divided in two parts, 28530203455 and 127, that added together give a palindrome (28530203582).

The spelling of 28530203455127 in words is "twenty-eight trillion, five hundred thirty billion, two hundred three million, four hundred fifty-five thousand, one hundred twenty-seven".