28472476455 has 72 divisors (see below), whose sum is σ = 51870257712. Its totient is φ = 15000930432.

The previous prime is 28472476447. The next prime is 28472476471. The reversal of 28472476455 is 55467427482.

28472476455 is a `hidden beast` number, since 2 + 84 + 72 + 47 + 6 + 455 = 666.

It is not a de Polignac number, because 28472476455 - 2³ = 28472476447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2717587 + ... + 2728043.

It is an arithmetic number, because the mean of its divisors is an integer number (720420246).

Almost surely, 2^28472476455 is an apocalyptic number.

28472476455 is a deficient number, since it is larger than the sum of its proper divisors (23397781257).

28472476455 is an frugal number, since it uses more digits than its factorization.

28472476455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10569 (or 10548 counting only the distinct ones).

The product of its digits is 15052800, while the sum is 54.

The spelling of 28472476455 in words is "twenty-eight billion, four hundred seventy-two million, four hundred seventy-six thousand, four hundred fifty-five".