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6344669899821 = 3112711113163737
BaseRepresentation
bin101110001010011101111…
…0010111010110000101101
3211110112200221202121101110
41130110323302322300231
51312422340443243241
621254411235102233
71223246556215601
oct134247362726055
924415627677343
106344669899821
112026839831630
12865781141979
133703b8893296
1417d1257d3501
15b008d0cc816
hex5c53bcbac2d

6344669899821 has 32 divisors (see below), whose sum is σ = 9263642167296. Its totient is φ = 3830661072000.

The previous prime is 6344669899811. The next prime is 6344669899859. The reversal of 6344669899821 is 1289989664436.

It is not a de Polignac number, because 6344669899821 - 223 = 6344661511213 is a prime.

It is a super-2 number, since 2×63446698998212 (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 (6344669899811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99512665 + ... + 99576401.

It is an arithmetic number, because the mean of its divisors is an integer number (289488817728).

Almost surely, 26344669899821 is an apocalyptic number.

It is an amenable number.

6344669899821 is a deficient number, since it is larger than the sum of its proper divisors (2918972267475).

6344669899821 is a wasteful number, since it uses less digits than its factorization.

6344669899821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75153.

The product of its digits is 967458816, while the sum is 75.

The spelling of 6344669899821 in words is "six trillion, three hundred forty-four billion, six hundred sixty-nine million, eight hundred ninety-nine thousand, eight hundred twenty-one".