28478615812598 has 16 divisors (see below), whose sum is σ = 48821236767744. Its totient is φ = 12204932933160.

The previous prime is 28478615812597. The next prime is 28478615812631. The reversal of 28478615812598 is 89521851687482.

It is a super-2 number, since 2×28478615812598² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28478615812597) 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, 14734790 + ... + 16555097.

It is an arithmetic number, because the mean of its divisors is an integer number (3051327297984).

Almost surely, 2^{28478615812598} is an apocalyptic number.

28478615812598 is a deficient number, since it is larger than the sum of its proper divisors (20342620955146).

28478615812598 is a wasteful number, since it uses less digits than its factorization.

28478615812598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31354907.

The product of its digits is 619315200, while the sum is 74.

The spelling of 28478615812598 in words is "twenty-eight trillion, four hundred seventy-eight billion, six hundred fifteen million, eight hundred twelve thousand, five hundred ninety-eight".