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64750418412 = 22343125485307
BaseRepresentation
bin111100010011011011…
…001111100111101100
320012010120100001201220
4330103123033213230
52030102101342122
645425042103340
74451401322031
oct742333174754
9205116301656
1064750418412
1125507a17799
121067094ab50
13614b991964
1431c3747388
151a3e80925c
hexf136cf9ec

64750418412 has 24 divisors (see below), whose sum is σ = 154597899456. Its totient is φ = 21081531408.

The previous prime is 64750418407. The next prime is 64750418423. The reversal of 64750418412 is 21481405746.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62742138 + ... + 62743169.

It is an arithmetic number, because the mean of its divisors is an integer number (6441579144).

Almost surely, 264750418412 is an apocalyptic number.

It is an amenable number.

64750418412 is an abundant number, since it is smaller than the sum of its proper divisors (89847481044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64750418412 is a wasteful number, since it uses less digits than its factorization.

64750418412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125485357 (or 125485355 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 64750418412 in words is "sixty-four billion, seven hundred fifty million, four hundred eighteen thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 125485307 250970614 376455921 501941228 752911842 1505823684 5395868201 10791736402 16187604603 21583472804 32375209206 64750418412