28601571457460 has 48 divisors (see below), whose sum is σ = 62587984631760. Its totient is φ = 10965495475200.

The previous prime is 28601571457453. The next prime is 28601571457531. The reversal of 28601571457460 is 6475417510682.

It can be written as a sum of positive squares in 8 ways, for example, as 1951156398244 + 26650415059216 = 1396838^2 + 5162404^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28601571457396 and 28601571457405.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 179895191 + ... + 180054110.

It is an arithmetic number, because the mean of its divisors is an integer number (1303916346495).

Almost surely, 2^{28601571457460} is an apocalyptic number.

28601571457460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28601571457460 is an abundant number, since it is smaller than the sum of its proper divisors (33986413174300).

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

28601571457460 is a wasteful number, since it uses less digits than its factorization.

28601571457460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359949476 (or 359949474 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 56.

The spelling of 28601571457460 in words is "twenty-eight trillion, six hundred one billion, five hundred seventy-one million, four hundred fifty-seven thousand, four hundred sixty".