6440514150446 has 8 divisors (see below), whose sum is σ = 9660854070840. Its totient is φ = 3220229460168.

The previous prime is 6440514150443. The next prime is 6440514150457.

6440514150446 is nontrivially palindromic in base 10.

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

It is a super-2 number, since 2×6440514150446² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6440514150397 and 6440514150406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6440514150443) 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, 13514756 + ... + 13983191.

It is an arithmetic number, because the mean of its divisors is an integer number (1207606758855).

Almost surely, 2^{6440514150446} is an apocalyptic number.

6440514150446 is a deficient number, since it is larger than the sum of its proper divisors (3220339920394).

6440514150446 is a wasteful number, since it uses less digits than its factorization.

6440514150446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27615058.

The product of its (nonzero) digits is 921600, while the sum is 44.

The spelling of 6440514150446 in words is "six trillion, four hundred forty billion, five hundred fourteen million, one hundred fifty thousand, four hundred forty-six".