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6441389464541 = 127160731561669
BaseRepresentation
bin101110110111100000010…
…1110110001101111011101
3211210210100111200120102012
41131233000232301233131
51321013431200331131
621411044455041005
71233242431026053
oct135570056615735
924723314616365
106441389464541
112063861476099
12880474370165
13379560880955
14183a9cccc1d3
15b284e32b52b
hex5dbc0bb1bdd

6441389464541 has 8 divisors (see below), whose sum is σ = 6496149166080. Its totient is φ = 6386692889808.

The previous prime is 6441389464511. The next prime is 6441389464577. The reversal of 6441389464541 is 1454649831446.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6441389464541 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 (6441389464511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15576746 + ... + 15984923.

It is an arithmetic number, because the mean of its divisors is an integer number (812018645760).

Almost surely, 26441389464541 is an apocalyptic number.

It is an amenable number.

6441389464541 is a deficient number, since it is larger than the sum of its proper divisors (54759701539).

6441389464541 is a wasteful number, since it uses less digits than its factorization.

6441389464541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31563403.

The product of its digits is 39813120, while the sum is 59.

The spelling of 6441389464541 in words is "six trillion, four hundred forty-one billion, three hundred eighty-nine million, four hundred sixty-four thousand, five hundred forty-one".

Divisors: 1 127 1607 204089 31561669 4008331963 50719602083 6441389464541