28323472761 has 24 divisors (see below), whose sum is σ = 43326691200. Its totient is φ = 17768128896.

The previous prime is 28323472747. The next prime is 28323472781. The reversal of 28323472761 is 16727432382.

28323472761 is a `hidden beast` number, since 2 + 8 + 32 + 347 + 276 + 1 = 666.

It is not a de Polignac number, because 28323472761 - 2¹⁹ = 28322948473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28323472781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 933516 + ... + 963378.

It is an arithmetic number, because the mean of its divisors is an integer number (1805278800).

Almost surely, 2^28323472761 is an apocalyptic number.

It is an amenable number.

28323472761 is a deficient number, since it is larger than the sum of its proper divisors (15003218439).

28323472761 is a wasteful number, since it uses less digits than its factorization.

28323472761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36085 (or 36082 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The spelling of 28323472761 in words is "twenty-eight billion, three hundred twenty-three million, four hundred seventy-two thousand, seven hundred sixty-one".