28153586461 has 96 divisors (see below), whose sum is σ = 39422592000. Its totient is φ = 19917817920.

The previous prime is 28153586459. The next prime is 28153586497. The reversal of 28153586461 is 16468535182.

It is not a de Polignac number, because 28153586461 - 2¹ = 28153586459 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28153586161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 42721350 + ... + 42722008.

It is an arithmetic number, because the mean of its divisors is an integer number (410652000).

Almost surely, 2^28153586461 is an apocalyptic number.

It is an amenable number.

28153586461 is a deficient number, since it is larger than the sum of its proper divisors (11269005539).

28153586461 is a wasteful number, since it uses less digits than its factorization.

28153586461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784 (or 757 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 49.

The spelling of 28153586461 in words is "twenty-eight billion, one hundred fifty-three million, five hundred eighty-six thousand, four hundred sixty-one".