28005415670548 has 24 divisors (see below), whose sum is σ = 50210125846272. Its totient is φ = 13661545114464.

The previous prime is 28005415670527. The next prime is 28005415670569. The reversal of 28005415670548 is 84507651450082.

It is an interprime number because it is at equal distance from previous prime (28005415670527) and next prime (28005415670569).

It is a super-3 number, since 3×28005415670548³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234900936 + ... + 235020127.

It is an arithmetic number, because the mean of its divisors is an integer number (2092088576928).

Almost surely, 2^{28005415670548} is an apocalyptic number.

It is an amenable number.

28005415670548 is a deficient number, since it is larger than the sum of its proper divisors (22204710175724).

28005415670548 is a wasteful number, since it uses less digits than its factorization.

28005415670548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469921431 (or 469921429 counting only the distinct ones).

The product of its (nonzero) digits is 10752000, while the sum is 55.

The spelling of 28005415670548 in words is "twenty-eight trillion, five billion, four hundred fifteen million, six hundred seventy thousand, five hundred forty-eight".