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67376919545 = 5138376116411
BaseRepresentation
bin111110101111111110…
…100011001111111001
320102220121120010221122
4332233332203033321
52100441442411140
650541425115025
74603443236525
oct765776431771
9212817503848
1067376919545
1126635572991
1211084488a75
136479b83140
1433924c6d85
151b451c1ab5
hexfaffa33f9

67376919545 has 32 divisors (see below), whose sum is σ = 88241940864. Its totient is φ = 49088217600.

The previous prime is 67376919539. The next prime is 67376919563. The reversal of 67376919545 is 54591967376.

It is not a de Polignac number, because 67376919545 - 28 = 67376919289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4097390 + ... + 4113800.

It is an arithmetic number, because the mean of its divisors is an integer number (2757560652).

Almost surely, 267376919545 is an apocalyptic number.

67376919545 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

67376919545 is a deficient number, since it is larger than the sum of its proper divisors (20865021319).

67376919545 is a wasteful number, since it uses less digits than its factorization.

67376919545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17273.

The product of its digits is 42865200, while the sum is 62.

The spelling of 67376919545 in words is "sixty-seven billion, three hundred seventy-six million, nine hundred nineteen thousand, five hundred forty-five".

Divisors: 1 5 13 65 83 415 761 1079 3805 5395 9893 16411 49465 63163 82055 213343 315815 821119 1066715 1362113 4105595 6810565 12488771 17707469 62443855 88537345 162354023 811770115 1036567993 5182839965 13475383909 67376919545