6346409887 has 8 divisors (see below), whose sum is σ = 6731429760. Its totient is φ = 5966489880.

The previous prime is 6346409857. The next prime is 6346409903. The reversal of 6346409887 is 7889046436.

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 6346409887 - 2²³ = 6338021279 is a prime.

It is a super-2 number, since 2×6346409887² = 80553836907622705538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6346409857) 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, 1272403 + ... + 1277380.

It is an arithmetic number, because the mean of its divisors is an integer number (841428720).

Almost surely, 2^6346409887 is an apocalyptic number.

6346409887 is a deficient number, since it is larger than the sum of its proper divisors (385019873).

6346409887 is a wasteful number, since it uses less digits than its factorization.

6346409887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549933.

The product of its (nonzero) digits is 6967296, while the sum is 55.

The square root of 6346409887 is about 79664.3576952705. The cubic root of 6346409887 is about 1851.4388501498.

The spelling of 6346409887 in words is "six billion, three hundred forty-six million, four hundred nine thousand, eight hundred eighty-seven".