6395746987 has 8 divisors (see below), whose sum is σ = 7739391456. Its totient is φ = 5159594112.

The previous prime is 6395746961. The next prime is 6395747023. The reversal of 6395746987 is 7896475936.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6395746987 - 2²³ = 6387358379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6395746937) 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, 26872768 + ... + 26873005.

It is an arithmetic number, because the mean of its divisors is an integer number (967423932).

Almost surely, 2^6395746987 is an apocalyptic number.

6395746987 is a deficient number, since it is larger than the sum of its proper divisors (1343644469).

6395746987 is a wasteful number, since it uses less digits than its factorization.

6395746987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53745797.

The product of its digits is 68584320, while the sum is 64.

The square root of 6395746987 is about 79973.4142512373. The cubic root of 6395746987 is about 1856.2241769439.

The spelling of 6395746987 in words is "six billion, three hundred ninety-five million, seven hundred forty-six thousand, nine hundred eighty-seven".