28406411460481 has 8 divisors (see below), whose sum is σ = 29641547370240. Its totient is φ = 27171281762592.

The previous prime is 28406411460457. The next prime is 28406411460491. The reversal of 28406411460481 is 18406411460482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28406411460481 - 2¹¹ = 28406411458433 is a prime.

It is a super-2 number, since 2×28406411460481² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28406411460491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9450661 + ... + 12088333.

It is an arithmetic number, because the mean of its divisors is an integer number (3705193421280).

Almost surely, 2^{28406411460481} is an apocalyptic number.

It is an amenable number.

28406411460481 is a deficient number, since it is larger than the sum of its proper divisors (1235135909759).

28406411460481 is a wasteful number, since it uses less digits than its factorization.

28406411460481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3105935.

The product of its (nonzero) digits is 1179648, while the sum is 49.

Subtracting from 28406411460481 its reverse (18406411460482), we obtain a palindrome (9999999999999).

The spelling of 28406411460481 in words is "twenty-eight trillion, four hundred six billion, four hundred eleven million, four hundred sixty thousand, four hundred eighty-one".