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641791723483 = 1861344863903
BaseRepresentation
bin10010101011011011100…
…01001000011111011011
32021100120120100120112201
421111231301020133123
541003342140122413
61210500211551031
764240124432311
oct11255561103733
92240516316481
10641791723483
11228200772a49
12a44728bb477
134869cc92881
14230c47b20b1
1511a63cc59dd
hex956dc487db

641791723483 has 4 divisors (see below), whose sum is σ = 642136589248. Its totient is φ = 641446857720.

The previous prime is 641791723481. The next prime is 641791723501. The reversal of 641791723483 is 384327197146.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 641791723483 - 21 = 641791723481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (641791723481) 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, 172430091 + ... + 172433812.

It is an arithmetic number, because the mean of its divisors is an integer number (160534147312).

Almost surely, 2641791723483 is an apocalyptic number.

641791723483 is a deficient number, since it is larger than the sum of its proper divisors (344865765).

641791723483 is a wasteful number, since it uses less digits than its factorization.

641791723483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344865764.

The product of its digits is 6096384, while the sum is 55.

The spelling of 641791723483 in words is "six hundred forty-one billion, seven hundred ninety-one million, seven hundred twenty-three thousand, four hundred eighty-three".

Divisors: 1 1861 344863903 641791723483