8146539897 has 8 divisors (see below), whose sum is σ = 10865230944. Its totient is φ = 5429437728.

The previous prime is 8146539881. The next prime is 8146539917. The reversal of 8146539897 is 7989356418.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8146539897 - 2⁴ = 8146539881 is a prime.

It is a super-2 number, since 2×8146539897² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8146539897.

It is not an unprimeable number, because it can be changed into a prime (8146539827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385203 + ... + 405800.

It is an arithmetic number, because the mean of its divisors is an integer number (1358153868).

Almost surely, 2^8146539897 is an apocalyptic number.

It is an amenable number.

8146539897 is a deficient number, since it is larger than the sum of its proper divisors (2718691047).

8146539897 is a wasteful number, since it uses less digits than its factorization.

8146539897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794439.

The product of its digits is 13063680, while the sum is 60.

The square root of 8146539897 is about 90258.1846538030. The cubic root of 8146539897 is about 2012.1378454180.

The spelling of 8146539897 in words is "eight billion, one hundred forty-six million, five hundred thirty-nine thousand, eight hundred ninety-seven".