17728873054 has 4 divisors (see below), whose sum is σ = 26593309584. Its totient is φ = 8864436526.

The previous prime is 17728873049. The next prime is 17728873091. The reversal of 17728873054 is 45037882771.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45037882771 = 7 ⋅6433983253.

It is a junction number, because it is equal to n+sod(n) for n = 17728872992 and 17728873010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4432218262 + ... + 4432218265.

It is an arithmetic number, because the mean of its divisors is an integer number (6648327396).

Almost surely, 2^17728873054 is an apocalyptic number.

17728873054 is a deficient number, since it is larger than the sum of its proper divisors (8864436530).

17728873054 is an equidigital number, since it uses as much as digits as its factorization.

17728873054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8864436529.

The product of its (nonzero) digits is 2634240, while the sum is 52.

The spelling of 17728873054 in words is "seventeen billion, seven hundred twenty-eight million, eight hundred seventy-three thousand, fifty-four".