28030177503 has 12 divisors (see below), whose sum is σ = 40661805600. Its totient is φ = 18606582816.

The previous prime is 28030177501. The next prime is 28030177531. The reversal of 28030177503 is 30577103082.

28030177503 is a `hidden beast` number, since 2 + 80 + 3 + 0 + 1 + 77 + 503 = 666.

It is not a de Polignac number, because 28030177503 - 2¹ = 28030177501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28030177501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6681303 + ... + 6685496.

It is an arithmetic number, because the mean of its divisors is an integer number (3388483800).

Almost surely, 2^28030177503 is an apocalyptic number.

28030177503 is a deficient number, since it is larger than the sum of its proper divisors (12631628097).

28030177503 is a wasteful number, since it uses less digits than its factorization.

28030177503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13367038 (or 13367035 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The spelling of 28030177503 in words is "twenty-eight billion, thirty million, one hundred seventy-seven thousand, five hundred three".