8102985877 has 8 divisors (see below), whose sum is σ = 9273622400. Its totient is φ = 6935616144.

The previous prime is 8102985851. The next prime is 8102985959. The reversal of 8102985877 is 7785892018.

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

It is a cyclic number.

It is not a de Polignac number, because 8102985877 - 2³¹ = 5955502229 is a prime.

It is a super-2 number, since 2×8102985877² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8102989877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 811377 + ... + 821302.

It is an arithmetic number, because the mean of its divisors is an integer number (1159202800).

Almost surely, 2^8102985877 is an apocalyptic number.

It is an amenable number.

8102985877 is a deficient number, since it is larger than the sum of its proper divisors (1170636523).

8102985877 is a wasteful number, since it uses less digits than its factorization.

8102985877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633395.

The product of its (nonzero) digits is 2257920, while the sum is 55.

The square root of 8102985877 is about 90016.5866771230. The cubic root of 8102985877 is about 2008.5455908502.

The spelling of 8102985877 in words is "eight billion, one hundred two million, nine hundred eighty-five thousand, eight hundred seventy-seven".