8121933007 has 8 divisors (see below), whose sum is σ = 8477012880. Its totient is φ = 7774328640.

The previous prime is 8121932999. The next prime is 8121933019. The reversal of 8121933007 is 7003391218.

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 8121933007 - 2³ = 8121932999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8121933907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1866657 + ... + 1871002.

It is an arithmetic number, because the mean of its divisors is an integer number (1059626610).

Almost surely, 2^8121933007 is an apocalyptic number.

8121933007 is a deficient number, since it is larger than the sum of its proper divisors (355079873).

8121933007 is a wasteful number, since it uses less digits than its factorization.

8121933007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3737753.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 8121933007 is about 90121.7676646436. The cubic root of 8121933007 is about 2010.1098928391.

The spelling of 8121933007 in words is "eight billion, one hundred twenty-one million, nine hundred thirty-three thousand, seven".