28122657151 has 4 divisors (see below), whose sum is σ = 28184195152. Its totient is φ = 28061119152.

The previous prime is 28122657139. The next prime is 28122657181. The reversal of 28122657151 is 15175622182.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28122657151 - 2¹³ = 28122648959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28122657181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30768315 + ... + 30769228.

It is an arithmetic number, because the mean of its divisors is an integer number (7046048788).

Almost surely, 2^28122657151 is an apocalyptic number.

28122657151 is a deficient number, since it is larger than the sum of its proper divisors (61538001).

28122657151 is an equidigital number, since it uses as much as digits as its factorization.

28122657151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61538000.

The product of its digits is 67200, while the sum is 40.

The spelling of 28122657151 in words is "twenty-eight billion, one hundred twenty-two million, six hundred fifty-seven thousand, one hundred fifty-one".