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64091848475 = 522563673939
BaseRepresentation
bin111011101100001010…
…111111111100011011
320010102200010020121202
4323230022333330123
52022230003122400
645235434424415
74426153503044
oct735412777433
9203380106552
1064091848475
11251aa1a5416
121050829210b
1360753c9cc5
1431600b58cb
151a01abc4d5
hexeec2bff1b

64091848475 has 6 divisors (see below), whose sum is σ = 79473892140. Its totient is φ = 51273478760.

The previous prime is 64091848453. The next prime is 64091848493. The reversal of 64091848475 is 57484819046.

It is a happy number.

It is not a de Polignac number, because 64091848475 - 224 = 64075071259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64091848475.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1281836945 + ... + 1281836994.

It is an arithmetic number, because the mean of its divisors is an integer number (13245648690).

Almost surely, 264091848475 is an apocalyptic number.

64091848475 is a deficient number, since it is larger than the sum of its proper divisors (15382043665).

64091848475 is a wasteful number, since it uses less digits than its factorization.

64091848475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563673949 (or 2563673944 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 64091848475 in words is "sixty-four billion, ninety-one million, eight hundred forty-eight thousand, four hundred seventy-five".

Divisors: 1 5 25 2563673939 12818369695 64091848475