28737273667775 has 6 divisors (see below), whose sum is σ = 35634219348072. Its totient is φ = 22989818934200.

The previous prime is 28737273667769. The next prime is 28737273667777. The reversal of 28737273667775 is 57776637273782.

It is not a de Polignac number, because 28737273667775 - 2⁸ = 28737273667519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28737273667696 and 28737273667705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28737273667777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 574745473331 + ... + 574745473380.

It is an arithmetic number, because the mean of its divisors is an integer number (5939036558012).

Almost surely, 2^{28737273667775} is an apocalyptic number.

28737273667775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28737273667775 is a deficient number, since it is larger than the sum of its proper divisors (6896945680297).

28737273667775 is a wasteful number, since it uses less digits than its factorization.

28737273667775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149490946721 (or 1149490946716 counting only the distinct ones).

The product of its digits is 6098924160, while the sum is 77.

The spelling of 28737273667775 in words is "twenty-eight trillion, seven hundred thirty-seven billion, two hundred seventy-three million, six hundred sixty-seven thousand, seven hundred seventy-five".