6801521142 has 16 divisors (see below), whose sum is σ = 14649430320. Its totient is φ = 2092775712.

The previous prime is 6801521141. The next prime is 6801521149. The reversal of 6801521142 is 2411251086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6801521141) 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, 43599417 + ... + 43599572.

It is an arithmetic number, because the mean of its divisors is an integer number (915589395).

Almost surely, 2^6801521142 is an apocalyptic number.

6801521142 is an abundant number, since it is smaller than the sum of its proper divisors (7847909178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6801521142 is a wasteful number, since it uses less digits than its factorization.

6801521142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87199007.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 6801521142 is about 82471.3352747486. The cubic root of 6801521142 is about 1894.6777314375.

The spelling of 6801521142 in words is "six billion, eight hundred one million, five hundred twenty-one thousand, one hundred forty-two".