6391955102 has 8 divisors (see below), whose sum is σ = 10325465976. Its totient is φ = 2950133112.

The previous prime is 6391955071. The next prime is 6391955111. The reversal of 6391955102 is 2015591936.

It is a happy number.

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

It is a super-3 number, since 3×6391955102³ (a number of 30 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6391955102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122922188 + ... + 122922239.

It is an arithmetic number, because the mean of its divisors is an integer number (1290683247).

Almost surely, 2^6391955102 is an apocalyptic number.

6391955102 is a deficient number, since it is larger than the sum of its proper divisors (3933510874).

6391955102 is a wasteful number, since it uses less digits than its factorization.

6391955102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245844442.

The product of its (nonzero) digits is 72900, while the sum is 41.

The square root of 6391955102 is about 79949.7035766863. The cubic root of 6391955102 is about 1855.8572674915.

The spelling of 6391955102 in words is "six billion, three hundred ninety-one million, nine hundred fifty-five thousand, one hundred two".