8153726989 has 2 divisors, whose sum is σ = 8153726990. Its totient is φ = 8153726988.

The previous prime is 8153726957. The next prime is 8153727041. The reversal of 8153726989 is 9896273518.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8055062500 + 98664489 = 89750^2 + 9933^2 .

It is a cyclic number.

It is not a de Polignac number, because 8153726989 - 2⁵ = 8153726957 is a prime.

It is a super-2 number, since 2×8153726989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8153726909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4076863494 + 4076863495.

It is an arithmetic number, because the mean of its divisors is an integer number (4076863495).

Almost surely, 2^8153726989 is an apocalyptic number.

It is an amenable number.

8153726989 is a deficient number, since it is larger than the sum of its proper divisors (1).

8153726989 is an equidigital number, since it uses as much as digits as its factorization.

8153726989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 58.

The square root of 8153726989 is about 90297.9899499430. The cubic root of 8153726989 is about 2012.7293918221.

The spelling of 8153726989 in words is "eight billion, one hundred fifty-three million, seven hundred twenty-six thousand, nine hundred eighty-nine".