28417088957 has 2 divisors, whose sum is σ = 28417088958. Its totient is φ = 28417088956.

The previous prime is 28417088881. The next prime is 28417088977. The reversal of 28417088957 is 75988071482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27766889956 + 650199001 = 166634^2 + 25499^2 .

It is a cyclic number.

It is not a de Polignac number, because 28417088957 - 2²⁰ = 28416040381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28417088896 and 28417088905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28417088977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14208544478 + 14208544479.

It is an arithmetic number, because the mean of its divisors is an integer number (14208544479).

Almost surely, 2^28417088957 is an apocalyptic number.

It is an amenable number.

28417088957 is a deficient number, since it is larger than the sum of its proper divisors (1).

28417088957 is an equidigital number, since it uses as much as digits as its factorization.

28417088957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9031680, while the sum is 59.

The spelling of 28417088957 in words is "twenty-eight billion, four hundred seventeen million, eighty-eight thousand, nine hundred fifty-seven".