8649920932157 has 2 divisors, whose sum is σ = 8649920932158. Its totient is φ = 8649920932156.

The previous prime is 8649920932127. The next prime is 8649920932249. The reversal of 8649920932157 is 7512390299468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8565256809316 + 84664122841 = 2926646^2 + 290971^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8649920932157 is a prime.

It is a super-2 number, since 2×8649920932157² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8649920932093 and 8649920932102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8649920932127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4324960466078 + 4324960466079.

It is an arithmetic number, because the mean of its divisors is an integer number (4324960466079).

It is a 1-persistent number, because it is pandigital, but 2⋅8649920932157 = 17299841864314 is not.

Almost surely, 2^{8649920932157} is an apocalyptic number.

It is an amenable number.

8649920932157 is a deficient number, since it is larger than the sum of its proper divisors (1).

8649920932157 is an equidigital number, since it uses as much as digits as its factorization.

8649920932157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58786560, while the sum is 65.

The spelling of 8649920932157 in words is "eight trillion, six hundred forty-nine billion, nine hundred twenty million, nine hundred thirty-two thousand, one hundred fifty-seven".