28563172465464 has 192 divisors, whose sum is σ = 95213656923840. Its totient is φ = 7532900536320.

The previous prime is 28563172465463. The next prime is 28563172465481. The reversal of 28563172465464 is 46456427136582.

28563172465464 is a `hidden beast` number, since 2 + 8 + 5 + 63 + 1 + 7 + 24 + 6 + 546 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28563172465463) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 299227984 + ... + 299323424.

It is an arithmetic number, because the mean of its divisors is an integer number (495904463145).

Almost surely, 2^{28563172465464} is an apocalyptic number.

28563172465464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28563172465464 is an abundant number, since it is smaller than the sum of its proper divisors (66650484458376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28563172465464 is a wasteful number, since it uses less digits than its factorization.

28563172465464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141150 (or 141143 counting only the distinct ones).

The product of its digits is 232243200, while the sum is 63.

The spelling of 28563172465464 in words is "twenty-eight trillion, five hundred sixty-three billion, one hundred seventy-two million, four hundred sixty-five thousand, four hundred sixty-four".