6861452939 has 8 divisors (see below), whose sum is σ = 7659296832. Its totient is φ = 6092621640.

The previous prime is 6861452891. The next prime is 6861453007. The reversal of 6861452939 is 9392541686.

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 6861452939 - 2⁸ = 6861452683 is a prime.

It is a super-2 number, since 2×6861452939² = 94159072868223475442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6861452839) 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, 7252649 + ... + 7253594.

It is an arithmetic number, because the mean of its divisors is an integer number (957412104).

Almost surely, 2^6861452939 is an apocalyptic number.

6861452939 is a deficient number, since it is larger than the sum of its proper divisors (797843893).

6861452939 is a wasteful number, since it uses less digits than its factorization.

6861452939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14506297.

The product of its digits is 2799360, while the sum is 53.

The square root of 6861452939 is about 82833.8876245707. The cubic root of 6861452939 is about 1900.2264678346.

The spelling of 6861452939 in words is "six billion, eight hundred sixty-one million, four hundred fifty-two thousand, nine hundred thirty-nine".