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768133746667 = 73121119878443
BaseRepresentation
bin10110010110110000101…
…01101100111111101011
32201102200120011100022201
423023120111230333223
5100041114214343132
61344513100001031
7106332033055240
oct13133025547753
92642616140281
10768133746667
11276844524a41
12104a52530177
1357586068181
142926c1195c7
1514eaa9242e7
hexb2d856cfeb

768133746667 has 32 divisors (see below), whose sum is σ = 911046262784. Its totient is φ = 633747693600.

The previous prime is 768133746661. The next prime is 768133746713. The reversal of 768133746667 is 766647331867.

It is not a de Polignac number, because 768133746667 - 23 = 768133746659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 768133746599 and 768133746608.

It is not an unprimeable number, because it can be changed into a prime (768133746661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90974548 + ... + 90982990.

It is an arithmetic number, because the mean of its divisors is an integer number (28470195712).

Almost surely, 2768133746667 is an apocalyptic number.

768133746667 is a deficient number, since it is larger than the sum of its proper divisors (142912516117).

768133746667 is a wasteful number, since it uses less digits than its factorization.

768133746667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10679.

The product of its digits is 128024064, while the sum is 64.

The spelling of 768133746667 in words is "seven hundred sixty-eight billion, one hundred thirty-three million, seven hundred forty-six thousand, six hundred sixty-seven".

Divisors: 1 7 31 211 217 1477 1987 6541 8443 13909 45787 59101 61597 261733 419257 431179 1781473 1832131 2934799 12470311 12996967 16776241 55225663 90978769 117433687 386579641 520063471 3539786851 3640444297 24778507957 109733392381 768133746667