6441246145 has 8 divisors (see below), whose sum is σ = 8136311040. Its totient is φ = 4881786480.

The previous prime is 6441246131. The next prime is 6441246151. The reversal of 6441246145 is 5416421446.

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 6441246145 - 2¹⁵ = 6441213377 is a prime.

It is a super-2 number, since 2×6441246145² = 82979303800954722050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33901201 + ... + 33901390.

It is an arithmetic number, because the mean of its divisors is an integer number (1017038880).

Almost surely, 2^6441246145 is an apocalyptic number.

It is an amenable number.

6441246145 is a deficient number, since it is larger than the sum of its proper divisors (1695064895).

6441246145 is a wasteful number, since it uses less digits than its factorization.

6441246145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67802615.

The product of its digits is 92160, while the sum is 37.

The square root of 6441246145 is about 80257.3743963756. The cubic root of 6441246145 is about 1860.6154883915.

The spelling of 6441246145 in words is "six billion, four hundred forty-one million, two hundred forty-six thousand, one hundred forty-five".