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53869446511 = 3136711873989
BaseRepresentation
bin110010001010110111…
…101000010101101111
312011001020212102100121
4302022313220111233
51340311034242021
640425225105411
73614635511626
oct621267502557
9164036772317
1053869446511
1120933997531
12a534928267
135106610a4a
1428705bc6bd
15160442c741
hexc8ade856f

53869446511 has 16 divisors (see below), whose sum is σ = 55819653120. Its totient is φ = 51932852640.

The previous prime is 53869446493. The next prime is 53869446577. The reversal of 53869446511 is 11564496835.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 53869446511 - 29 = 53869445999 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 (53869441511) 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, 13502505 + ... + 13506493.

It is an arithmetic number, because the mean of its divisors is an integer number (3488728320).

Almost surely, 253869446511 is an apocalyptic number.

53869446511 is a deficient number, since it is larger than the sum of its proper divisors (1950206609).

53869446511 is a wasteful number, since it uses less digits than its factorization.

53869446511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5574.

The product of its digits is 3110400, while the sum is 52.

The spelling of 53869446511 in words is "fifty-three billion, eight hundred sixty-nine million, four hundred forty-six thousand, five hundred eleven".

Divisors: 1 31 367 1187 3989 11377 36797 123659 435629 1463963 4734943 13504499 45382853 146783233 1737724081 53869446511