28407468555 has 64 divisors (see below), whose sum is σ = 50968051200. Its totient is φ = 15011268480.

The previous prime is 28407468553. The next prime is 28407468559. The reversal of 28407468555 is 55586470482.

28407468555 is a `hidden beast` number, since 2 + 8 + 40 + 7 + 46 + 8 + 555 = 666.

It is not a de Polignac number, because 28407468555 - 2¹ = 28407468553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28407468553) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21734212 + ... + 21735518.

It is an arithmetic number, because the mean of its divisors is an integer number (796375800).

Almost surely, 2^28407468555 is an apocalyptic number.

28407468555 is a deficient number, since it is larger than the sum of its proper divisors (22560582645).

28407468555 is a wasteful number, since it uses less digits than its factorization.

28407468555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681 (or 2675 counting only the distinct ones).

The product of its (nonzero) digits is 10752000, while the sum is 54.

The spelling of 28407468555 in words is "twenty-eight billion, four hundred seven million, four hundred sixty-eight thousand, five hundred fifty-five".