28654334471 has 16 divisors (see below), whose sum is σ = 33889190400. Its totient is φ = 23705431008.

The previous prime is 28654334461. The next prime is 28654334491. The reversal of 28654334471 is 17443345682.

It is not a de Polignac number, because 28654334471 - 2¹⁸ = 28654072327 is a prime.

It is a super-3 number, since 3×28654334471³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28654334441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 577670 + ... + 625308.

It is an arithmetic number, because the mean of its divisors is an integer number (2118074400).

Almost surely, 2^28654334471 is an apocalyptic number.

28654334471 is a deficient number, since it is larger than the sum of its proper divisors (5234855929).

28654334471 is a wasteful number, since it uses less digits than its factorization.

28654334471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50638.

The product of its digits is 1935360, while the sum is 47.

The spelling of 28654334471 in words is "twenty-eight billion, six hundred fifty-four million, three hundred thirty-four thousand, four hundred seventy-one".