6239985101 has 4 divisors (see below), whose sum is σ = 7131411552. Its totient is φ = 5348558652.

The previous prime is 6239985061. The next prime is 6239985109. The reversal of 6239985101 is 1015899326.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6239985101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6239985109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 445713215 + ... + 445713228.

It is an arithmetic number, because the mean of its divisors is an integer number (1782852888).

Almost surely, 2^6239985101 is an apocalyptic number.

It is an amenable number.

6239985101 is a deficient number, since it is larger than the sum of its proper divisors (891426451).

6239985101 is an equidigital number, since it uses as much as digits as its factorization.

6239985101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891426450.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 6239985101 is about 78993.5763274458. The cubic root of 6239985101 is about 1841.0313512484.

The spelling of 6239985101 in words is "six billion, two hundred thirty-nine million, nine hundred eighty-five thousand, one hundred one".