28654493071 has 8 divisors (see below), whose sum is σ = 28720345088. Its totient is φ = 28588707000.

The previous prime is 28654493059. The next prime is 28654493113. The reversal of 28654493071 is 17039445682.

It is a happy number.

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

It is a 6-Lehmer number, since φ(28654493071) divides (28654493071-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 28654493071 - 2⁷ = 28654492943 is a prime.

It is a super-2 number, since 2×28654493071² (a number of 22 digits) contains 22 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 (28654493041) 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, 912766 + ... + 943636.

It is an arithmetic number, because the mean of its divisors is an integer number (3590043136).

It is a 2-persistent number, because it is pandigital, and so is 2⋅28654493071 = 57308986142, but 3⋅28654493071 = 85963479213 is not.

Almost surely, 2^28654493071 is an apocalyptic number.

28654493071 is a deficient number, since it is larger than the sum of its proper divisors (65852017).

28654493071 is a wasteful number, since it uses less digits than its factorization.

28654493071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32973.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 28654493071 in words is "twenty-eight billion, six hundred fifty-four million, four hundred ninety-three thousand, seventy-one".