6929133981 has 64 divisors (see below), whose sum is σ = 12115132416. Its totient is φ = 3417523200.

The previous prime is 6929133979. The next prime is 6929134067. The reversal of 6929133981 is 1893319296.

It is a happy number.

It is not a de Polignac number, because 6929133981 - 2¹ = 6929133979 is a prime.

It is a super-2 number, since 2×6929133981² = 96025795453297816722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6929133901) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 370405 + ... + 388661.

It is an arithmetic number, because the mean of its divisors is an integer number (189298944).

Almost surely, 2^6929133981 is an apocalyptic number.

It is an amenable number.

6929133981 is a deficient number, since it is larger than the sum of its proper divisors (5185998435).

6929133981 is a wasteful number, since it uses less digits than its factorization.

6929133981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18362.

The product of its digits is 629856, while the sum is 51.

The square root of 6929133981 is about 83241.4198641518. The cubic root of 6929133981 is about 1906.4539508151.

The spelling of 6929133981 in words is "six billion, nine hundred twenty-nine million, one hundred thirty-three thousand, nine hundred eighty-one".