6441952340253 has 16 divisors (see below), whose sum is σ = 8638200107136. Its totient is φ = 4270238169600.

The previous prime is 6441952340251. The next prime is 6441952340261. The reversal of 6441952340253 is 3520432591446.

It is not a de Polignac number, because 6441952340253 - 2¹ = 6441952340251 is a prime.

It is a super-2 number, since 2×6441952340253² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6441952340251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8177625 + ... + 8930702.

It is an arithmetic number, because the mean of its divisors is an integer number (539887506696).

Almost surely, 2^{6441952340253} is an apocalyptic number.

It is an amenable number.

6441952340253 is a deficient number, since it is larger than the sum of its proper divisors (2196247766883).

6441952340253 is a wasteful number, since it uses less digits than its factorization.

6441952340253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17109044.

The product of its (nonzero) digits is 3110400, while the sum is 48.

The spelling of 6441952340253 in words is "six trillion, four hundred forty-one billion, nine hundred fifty-two million, three hundred forty thousand, two hundred fifty-three".