8121675755 has 8 divisors (see below), whose sum is σ = 9746560224. Its totient is φ = 6496974400.

The previous prime is 8121675719. The next prime is 8121675791. The reversal of 8121675755 is 5575761218.

It is an interprime number because it is at equal distance from previous prime (8121675719) and next prime (8121675791).

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

It is a de Polignac number, because none of the positive numbers 2^k-8121675755 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86615 + ... + 154095.

It is an arithmetic number, because the mean of its divisors is an integer number (1218320028).

Almost surely, 2^8121675755 is an apocalyptic number.

8121675755 is a deficient number, since it is larger than the sum of its proper divisors (1624884469).

8121675755 is a wasteful number, since it uses less digits than its factorization.

8121675755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91557.

The product of its digits is 588000, while the sum is 47.

The square root of 8121675755 is about 90120.3404065919. The cubic root of 8121675755 is about 2010.0886700485.

The spelling of 8121675755 in words is "eight billion, one hundred twenty-one million, six hundred seventy-five thousand, seven hundred fifty-five".